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Original article

Changes in primary health care in response to the COVID-19 pandemic in Montenegro

Lidija Šćepanović1, Nataša Terzić1

ABSTRACT

Introduction: Primary health care is considered the basis, not only for meeting healthcare needs, but also for responding to crisis situations, such as the crisis caused by the outbreak of the COVID-19 pandemic.

Aim: The aim of this study is to describe changes in primary health care caused by the outbreak of COVID-19 in Montenegro, with a focus on the organization and provision of health services.

Methods: This is a descriptive observational study with the following main outcome measures: number and manner of visits and services, including e-services, prescribed antibiotics and prescriptions according to the diagnosis, per 1,000 inhabitants, in the year 2020, as compared to the same indicators in 2019. Data were generated from the health statistics information system of the Institute of Public Health of Montenegro. Demographic data from official statistics were used.

Results: The global pandemic has changed the functioning of primary health care, and ad hoc solutions have been found, in terms of infrastructure, the health workforce, and new e-health services. As compared to 2019, in 2020, the total number of visits per 1,000 inhabitants decreased by 12%, while home visits increased by 15%, in the third quarter. Online scheduling (e-order) was the most commonly used e-service (accessed 983,212 times in 2020). The prescribed antibiotics did not exceed the monthly rates from 2019 (per 1,000 inhabitants). The number of prescriptions issued (per 1,000 inhabitants), in 2020, increased by 8% for the diagnoses for which doctors prescribed the most prescriptions (per 1,000 inhabitants).

Conclusion: The COVID-19 pandemic has changed the functioning of primary health care, with a transition from office visits to – home visits, telephone consultations, and e-services, without physical contact. However, there is room for improvement in meeting health needs in the area of prevention and treatment of other diseases.


INTRODUCTION

Primary health care (PHC), as the “cornerstone of a sustainable health system“ [1], is essential for the response to the COVID-19 pandemic. Primary health care was expected, not only to meet the ‘usual’ needs in health care, but also to respond to the crisis situation, as well as to adapt, in order to meet the needs of the patients with suspected COVID-19, as well as the needs of the patients tested for COVID-19, and with a confirmed diagnosis of the disease. PHC had to use its advantages in order to develop a basic strategy for dealing with the COVID-19 pandemic, with these advantages being: familiarity between the doctors and patients, a good relationship between the doctors and patients, access to healthcare services, etc. [2]. In managing the best part of the burden of the COVID-19 pandemic, wherein its role of the healthcare system gatekeeper, as well as its role in triage have been emphasized, PHC had to maintain focus on the health of the community as a whole [3].

Montenegro was the last country in Europe to register its first cases of COVID-19, which provided the Montenegrin authorities with an opportunity to prepare the entire system for a response to the pandemic [4]. However, similarly to other countries in Southeast Europe (SEE), Montenegro also faced a number of different challenges (e.g., lack of personal protective equipment) [5]. Before the first cases were registered, the Institute of Public Health of Montenegro (IPHM) presented the first version of the National Action Plan for COVID-19 in Montenegro (i.e., COVID-19: Preparedness and Response Plan Montenegro) [6]. After the COVID-19 epidemic broke out in Italy [7], and after the first cases of the disease were confirmed in Montenegro (March 17, 2020), PHC was the first entry point for persons with symptoms of the COVID-19 infection, and it was faced with the necessity to transform, in order to be able to respond to the challenges of the pandemic. This included, not just changes in organization, management, communication, and work, but also constant changing and adapting to the new modes of operation and new ways of providing health services. In addition to the general strategic plan, adopted by the Government, the Clinic for Infectious Diseases also issued national recommendations for treating COVID-19, including guidelines for treatment and support measures. Other national guidelines for PHC, in relation to COVID-19, which would provide additional support for the primary healthcare centers, as a response to the pandemic of the new disease, were not developed. Decisions at the national level were made by the ad hoc team of the National Coordinating Body (NCB).

The aim of this paper is to describe the changes in primary health care, occurring after the outbreak of the COVID-19 epidemic in Montenegro, with a focus on the organizational aspect, as well as on several measures of outcomes.

PRIMARY HEALTH CARE IN MONTENEGRO

Primary health care in Montenegro is predominantly organized within publicly owned institutions. In the last 20 years, it has undergone reforms, in order to meet most of the healthcare needs of the population. The responsibilities and the organization of primary health care are precisely defined within the legal framework, with a focus on family medicine [8]. PHC encompasses a wide array of services offered to adults, children and youths, and women (in the field of reproductive health). Primary health care also includes dental health services, services in the area of mental health, emergency services, and other. PHC is a priority in the development of the healthcare system of Montenegro. Its services are provided within 18 community healthcare centers, which have units at different urban and suburban locations. The community healthcare center has three basic types of units: (i) offices of the ‘selected physicians’ (i.e., primary care physicians/family doctors) – pediatricians for children up to the age of 15, GPs for adults, as well as gynecologists for women; (ii) support centers for the primary care physicians, organized at the local and regional levels (pulmonary diseases, diagnostics, mental health, prevention, other); (iii) units for home and domiciliary visits, primary-level physical therapy, and medical transport.

According to the data from the latest census (2011), the population of Montenegro is 620,029, with tendencies of gradual population ageing (decreasing birthrate, fertility rate, and population growth) and mortality rate increase [9]. Primary care physicians visit those patients who are unable to visit the doctor’s office in the primary health care facilities. Additionally, teams for home and domiciliary visits carry out home visits with the aim of providing preventive and treatment services for the most vulnerable groups (visits during pregnancy, home visits for newborns and small children, home visits for the elderly). A unit providing out-of-hours services to children operates within the primary health care unit that is on-call/onduty at the time, while adults receive out-of-hours care in emergency units within the PHC, which are on-duty 24 h. Access to PHC is possible via scheduled visits, unscheduled visits, in case of an emergency, as well as via telephone consultations. Mental health centers are organized as clinics/outpatient facilities. PHC has a call center for issuing general information and scheduling appointments.

MATERIALS AND METHODS

This study is designed as a comparative observational analysis of the number and method of provided visits and services. These services include e-services, prescribed antibiotics, and prescriptions issued on the basis of registered diagnoses, per 1,000 population, in Montenegro, during the first year of the COVID-19 pandemic (2020), and in the year before the pandemic (2019). The data used was generated from the health statistics information system of the Institute of Public Health of Montenegro (IPHM). These data include: number of visits to PHC; method of performing consultations (visit to the doctor’s office/home visit); number of issued prescriptions for the most common diagnoses, according to the Tenth Revision of the International Classification of Diseases (ICD-10), such as: hypertension (I10), diabetes (E11), chronic obstructive pulmonary disease (J44), asthma (J45), dyspepsia (K30), angina pectoris (I20), cardiomyopathy (I42), and acute bronchitis (J20), for which drugs and antibiotics were prescribed, belonging to the J01 group (antibacterial drugs for systemic use), per 1,000 population. The data relate to the period January – September of 2019 and 2020. Additionally, data on e-services, pertaining to the period January – September of 2019 and 2020, were obtained from the Health Insurance Fund of Montenegro. Demographic data of the official statistics for calculating rates were used. Data analysis was descriptive and analytical, with a focus on changes in the mode of operation, changes in performing consultations, as well as changes in providing health services, after the COVID-19 outbreak in Montenegro.

RESULTS

After the outbreak of the COVID-19 epidemic in Montenegro, in response to the crisis, a strategic preparedness and response plan was prepared, which was, however, more focused on the organization of the country’s in-patient hospital capacities [6],[10]. Consequently, PHC had to manage its own organization and mode of operation, in response to the crisis. First, triage was established at the entrances of the primary health care facilities, while patients were advised to avoid visits. Also, patients in whom COVID-19 was suspected were advised to contact primary health care clinics by phone. The telephone lines in COVID-19 clinics were open for scheduling appointments, obtaining test results, getting information and short medical advice, on a daily basis. PHC monitored persons who were in isolation and quarantine, wherein a particular challenge was providing a quick response and recognizing the early signs of deterioration in the health status of the patient requiring in-hospital treatment and care. The priority was taking care of COVID-19 patients, at the cost of regular health care services that are normally provided at the community health care centers. Also, the teams for home and domiciliary visits primarily visited patients with COVID-19 symptoms.

The community health care centers were divided into two separate subdivisions: the division with patients with suspected COVID-19 and the division for non-COVID-19 patients. To this end, new facilities were built, or temporary prefabricated buildings were used. The management of the community health care centers had to provide staff for the COVID-19 clinics from its existing pool of health workers. The ad hoc solutions for providing increased working capacities were, as follows: changes in the work schedules, changes in working hours, and introducing on-duty shifts with additional working hours. The COVID-19 teams spent a part of their shift in house visits. Health workers who took part in testing and treating COVID-19 patients were awarded financial incentives, on a number of occasions. Patients were referred for testing through the COVID-19 clinics at the community health care centers and through the IPHM call center. The testing process was centralized at the reference institution performing PCR testing at the national level – the IPHM. Samples were delivered to the IPHM for testing from all towns in Montenegro, on a daily basis, and the test results were, in most cases, issued within 24 hours.

E-SERVICES

The web portal E-zdravlje (E-health) [11] integrated the existing e-services (e.g., e-order, e-prescription, e-test results) and new e-services, which also became available to users (Figure 1). Electronic scheduling (e-order) was the most frequently used e-service (accessed 983,212 times in 2020) and was used 3.7 times more than the previous year. The new e-service – COVID-19, was specially developed during the pandemic, for the purpose of obtaining feed-back on test results (accessed more than 600,000 times in 2020). E-prescription was amongst the very frequently used e-applications (accessed 243,378 times).

02 01

*data for the first three quarters

Figure 1. Use of e-services in 2019 vs 2020; Source: Institute of Public Health of Montenegro, 2020

OFFICE VISITS, HOME VISITS, TOTAL NUMBER OF VISITS

The total number of visits per 1,000 population in 2020 (Table 1) decreased by 12% (by quarters: -4.5%; -18.9%; -12.2%), which is also true for office visits (-4.42; -18.84; -12.34), while home visits of the PHC teams also decreased in the first and second quarters (-19.09%; -34.27%) and increased in the third quarter (+15.36%).

Table 1. Number of visits (total, home and office visits) in primary health care institutions, in  Montenegro, per 1,000 inhabitants, in the period January – September; year 2019 vs year 2020

02 02

PRESCRIBED ANTIBIOTICS: JANUARY – SEPTEMBER 2019 AND JANUARY – SEPTEMBER 2020

The number of prescribed antibiotics in the period January – September 2020 decreased by 23%, regarding the total number of prescriptions, as compared to the same period in 2019. The prescribed antibiotics per 1,000 population in 2020 did not surpass the rate from 2019 (Figure 2). The rate was the lowest in April, upon which it increased but still remained lower than in 2019.

02 03

Figure 2. Number of prescriptions for ATC group J01 – Antibiotics for systemic use, per 1,000 population, in the period January – September; years 2019 and 2020, in Montenegro; Source: Institute of Public Health of Montenegro, 2020

When the 10 diagnoses (ICD-10) for which doctors prescribed the highest number of prescriptions (per 1,000 population) are compared, it transpires that the number of prescriptions (per 1,000 population) increased by 8% in 2020, as compared to 2019 (Figure 3). The greatest increase, amounting to 24.4%, was noted amongst the prescriptions for cardiovascular diseases.

02 04

Figure 3. Ten diagnoses (ICD-10) for which doctors prescribed medication (per 1,000 population), in the years 2020 and 2019; Source: Institute of Public Health of Montenegro, 2020

DISCUSSION

This study emphasizes the transformation and changes in primary health care, which occurred in the first waves of the COVID-19 epidemic in Montenegro. PHC faced the challenges of implementing a parallel system in providing health services both to COVID-19 and nonCOVID-19 patients, which needed to be established, in order to provide a safe environment in the healthcare units. This study has shown that, in Montenegro, PHC quickly adapted its physical infrastructure (by building new buildings or transforming existing facilities), thus enabling the examining and follow-up of patients with suspected COVID-19, and that it also implemented changes in human resources management (modifications to the work schedule, introducing additional working hours, financial incentives, improving/organizing work conditions). Several European countries (Belgium, the Netherlands, Ireland) organized services in a similar way, within COVID-19 clinics (hubs), in order to provide safe environments for patient care [12].

Our data have shown that, despite a decrease in visits within PHC (office visits and home visits), the number of contacts with PHC increased, in the first months after the outbreak of the COVID-19 pandemic. It is also interesting that the increase in home visits in the third quarter of 2020 could be the result of organized home visits by PHC teams for the purpose of monitoring patients with COVID-19 symptoms. Many countries also reported that, as an indirect result of the COVID-19 pandemic outbreak, a drastic decrease in the scope of PHC visits was registered [15]. Providing remote health services, via telephone lines and the web portal E-zdravlje, increased, to a great extent, the number of contacts with primary health care, upon the outbreak of the COVID-19 epidemic in Montenegro. A large number of European countries felt that the transition to remote health services was necessary [13]. E-services enabled the patients to obtain their prescription medication through the use of their electronic devices (computer, smartphone, tablet, etc.) Primary healthcare physicians could prescribe medication without physical contact, i.e., after a telephone consultation, which was very helpful to certain patients (e.g., elderly patients, patients with chronic and other diseases). Also, e-services, such as e-results of health tests or e-rights, were appropriate for obtaining lab test results or documents and certificates customarily issued by PHC (health certificates for preschool attendance or sick-leave certificates) without any need for the patient to leave their home.

The decrease in the number of visits within PHC (office visits and home visits) was followed by the decrease in the number of prescribed antibiotics (January – September 2020 as compared to January – September 2019), per 1,000 population. A study from another small country revealed that the COVID-19 pandemic had a small impact on the prescribing of antibiotics [13]. However, in other cases, the limited access to primary health care resulting from the COVID-19 pandemic, led to the increased prescribing of antibiotics [14]. Our study has shown that the number of prescribed antibiotics increased in the third quarter of 2020, almost reaching the level of 2019. It is possible that the increase in the prescribing of drugs was influenced by the enormous increase in the use of the e-prescription service.

Regarding the 10 leading diagnoses from the ICD10, for which doctors prescribed medication (per 1,000 population), the number of prescriptions increased the most for circulatory system diseases, which are, indeed, the leading cause of morbidity and mortality in Montenegro. As expected, the 10 leading ICD-10 diagnoses for which doctors prescribed medication (per 1,000 population) during the pandemic, were the usual diagnoses: hypertension (I10), diabetes (E11), chronic obstructive pulmonary disease (J44), asthma (J45), dyspepsia (K30), angina pectoris (I20), and cardiomyopathy (I42). What is surprising is that the diagnosis of acute bronchitis (J20) was not amongst the 10 leading causes for which doctors prescribed medication during the pandemic. The total increase of the number of prescriptions for the 10 leading ICD-10 diagnoses indicates that PHC was relatively accessible during the pandemic.

Our study has several limitations. The data used in the study were generated from the reports pertaining to state-owned PHC and did not include data on health services provided at privately owned clinics (prescribed medication, visits, etc.). While the study describes the changes in primary health care and several outcomes, it lacks conclusions with respect to the efficiency and quality of care. The changes in PHC that occurred were not followed by changes in the information and reporting system, which has had impact on the quality of available data. The effect that the postponing of regular visits to PHC clinics has had on the health of patients has not been investigated and analyzed. The time period covered by this study is relatively short, which is why the recommendation is that a more detailed analysis should be performed regarding the response of primary health care to the COVID-19 pandemic.

CONCLUSION

In Montenegro, primary health care faced abrupt changes after the COVID-19 outbreak, which resulted in the transformation of the method of management and providing services. With the transition from office visits to – home visits, telephone consultations, and e-services, without physical contact, access to PHC was made possible. The overall increase in the number of prescriptions issued for the 10 leading diagnoses (ICD10) indicates that PHC was relatively accessible during the pandemic. The prescribing of antibiotics followed the increase in the use of e-health services, but it did not surpass the number of prescriptions issued in 2019. Although PHC was, in part, transformed, there is still room for improvement in meeting health needs in the area of prevention and treatment of other diseases.

LIST OF ABBREVIATIONS AND ACRONYMS

ATC – Anatomical Therapeutic Chemical Classification System
ICD-10 – International Classification of Diseases, 10th Revision
IPHM – Institute of Public Health of Montenegro
NCB – National Coordinating Body
PHC – primary health care
PCR – polymerase chain reaction
SEE – Southeast Europe

  • Conflict of interest:
    None declared.

Informations

Volume 3 No 2

June 2022

Pages 149-158
  • Keywords:
    primary health care, visits, COVID-19, Montenegro
  • Received:
    06 May 2022
  • Revised:
    10 May 2022
  • Accepted:
    05 June 2022
  • Online first:
    25 June 2022
  • DOI:
Corresponding author

Lidija Šćepanović
Institute of Public Health of Montenegro, Podgorica, Montenegro
Džona Džeksona Street, 81000 Podgorica, Montenegro
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.



REFERENCES

1. World Health Organization. Declaration of Astana: Global Conference on Primary Health Care: Astana, Kazakhstan, 25 and 26 October 2018. [Internet]. [pristupljeno 18.11.2021.]. Dostupno na: https://www.who.int/docs/default-source/primary-health/declaration/gcphc-declaration.pdf.[HTTP]

2. Sarti TD, Lazarini WS, Fontenelle LF, Almeida APSC. What is the role of Primary Health Care in the COVID-19 pandemic? Epidemiol Serv Saude. 2020;29(2):e2020166. English, Portuguese. doi: 10.5123/s1679-49742020000200024.[CROSSREF]

3. Sigurdsson EL, Blondal AB, Jonsson JS, Tomasdottir MO, Hrafnkelsson H, Linnet K, et al. How primary healthcare in Iceland swiftly changed its strategy in response to the COVID-19 pandemic. BMJ Open. 2020 Dec 7;10(12):e043151. doi: 10.1136/bmjopen-2020-043151.[CROSSREF]

4. Puca E, Čivljak R, Arapović J, Popescu C, Christova I, Raka L, et al. Short epidemiological overview of the current situation on COVID-19 pandemic in Southeast European (SEE) countries. J Infect Dev Ctries. 2020 May 31;14(5):433-7. doi: 10.3855/jidc.12814.[CROSSREF]

5. Bokan V, Obradovic M. Experience of a small country (Montenegro) in the COVID-19 epidemic and its impact on rehabilitation. Eur J Phys Rehabil Med. 2020 Jun;56(3):367-368. doi: 10.23736/S1973-9087.20.06352-2.[CROSSREF]

6. WHO Regional Office for Europe. COVID-19: Preparedness and Response Plan Montenegro, 2020, Licence: CC BY-NC-SA 3.0 IGO. [Internet]. [pristupljeno 18.11.2021.]. Dostupno na: https://montenegro.un.org/sites/default/files/202004/Plan%20pripremljenosti%20i%20odgovora%20-%20Crna%20Gora.pdf.[HTTP]

7. Day M. Covid-19: Italy confirms 11 deaths as cases spread from north. BMJ. 2020 Feb 26;368:m757. doi: 10.1136/bmj.m757.[CROSSREF]

8. Government of Montenegro. Law on Health care. Official Gazette No. 39/16, 2/17, 44/18. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: https://wapi.gov.me/download-preview/d99ce2cc-1d8a-4876-b9f7-a900f8937196?version=1.0.[HTTP]

9. Statistic Agency MONSTAT. Statistical Yearbook 2019. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: http://www.monstat.org/cg/novosti.php?id=3181.[HTTP]

10. European Observatory on Health Systems and Policies. COVID-19 Health System Response Monitor (HSRM), country overview: Montenegro. [Internet]. [cited 18 November 2021]. Available from: https://eurohealthobservatory.who.int/monitors/hsrm/hsrm-countries/hsrm/montenegro[HTTP]

11. Health Insurance Fund of Montenegro web portal E-zdravlje. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: https://www.ezdravlje.me/ZakazivanjePrva/faces/Pocetna;jsessionid=852477a74e392f681a754209a93.[HTTP]

12. Wanat M, Hoste M, Gobat N, Anastasaki M, Böhmer F, Chlabicz S, et al. Transformation of primary care during the COVID-19 pandemic: experiences of healthcare professionals in eight European countries. Br J Gen Pract. 2021 Jul 29;71(709):e634-42. doi: 10.3399/BJGP.2020.1112.[CROSSREF]

13. Morreel S, Philips H, Verhoeven V. Organisation and characteristics of outof-hours primary care during a COVID-19 outbreak: A real-time observational study. PLoS One. 2020 Aug 13;15(8):e0237629. doi: 10.1371/journal.pone.0237629.[CROSSREF]

14. Shah S, Wordley V, Thompson W. How did COVID-19 impact on dental antibiotic prescribing across England? Br Dent J. 2020 Nov;229(9):601-4. doi: 10.1038/s41415-020-2336-6.[CROSSREF]

1. World Health Organization. Declaration of Astana: Global Conference on Primary Health Care: Astana, Kazakhstan, 25 and 26 October 2018. [Internet]. [pristupljeno 18.11.2021.]. Dostupno na: https://www.who.int/docs/default-source/primary-health/declaration/gcphc-declaration.pdf.[HTTP]

2. Sarti TD, Lazarini WS, Fontenelle LF, Almeida APSC. What is the role of Primary Health Care in the COVID-19 pandemic? Epidemiol Serv Saude. 2020;29(2):e2020166. English, Portuguese. doi: 10.5123/s1679-49742020000200024.[CROSSREF]

3. Sigurdsson EL, Blondal AB, Jonsson JS, Tomasdottir MO, Hrafnkelsson H, Linnet K, et al. How primary healthcare in Iceland swiftly changed its strategy in response to the COVID-19 pandemic. BMJ Open. 2020 Dec 7;10(12):e043151. doi: 10.1136/bmjopen-2020-043151.[CROSSREF]

4. Puca E, Čivljak R, Arapović J, Popescu C, Christova I, Raka L, et al. Short epidemiological overview of the current situation on COVID-19 pandemic in Southeast European (SEE) countries. J Infect Dev Ctries. 2020 May 31;14(5):433-7. doi: 10.3855/jidc.12814.[CROSSREF]

5. Bokan V, Obradovic M. Experience of a small country (Montenegro) in the COVID-19 epidemic and its impact on rehabilitation. Eur J Phys Rehabil Med. 2020 Jun;56(3):367-368. doi: 10.23736/S1973-9087.20.06352-2.[CROSSREF]

6. WHO Regional Office for Europe. COVID-19: Preparedness and Response Plan Montenegro, 2020, Licence: CC BY-NC-SA 3.0 IGO. [Internet]. [pristupljeno 18.11.2021.]. Dostupno na: https://montenegro.un.org/sites/default/files/202004/Plan%20pripremljenosti%20i%20odgovora%20-%20Crna%20Gora.pdf.[HTTP]

7. Day M. Covid-19: Italy confirms 11 deaths as cases spread from north. BMJ. 2020 Feb 26;368:m757. doi: 10.1136/bmj.m757.[CROSSREF]

8. Government of Montenegro. Law on Health care. Official Gazette No. 39/16, 2/17, 44/18. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: https://wapi.gov.me/download-preview/d99ce2cc-1d8a-4876-b9f7-a900f8937196?version=1.0.[HTTP]

9. Statistic Agency MONSTAT. Statistical Yearbook 2019. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: http://www.monstat.org/cg/novosti.php?id=3181.[HTTP]

10. European Observatory on Health Systems and Policies. COVID-19 Health System Response Monitor (HSRM), country overview: Montenegro. [Internet]. [cited 18 November 2021]. Available from: https://eurohealthobservatory.who.int/monitors/hsrm/hsrm-countries/hsrm/montenegro[HTTP]

11. Health Insurance Fund of Montenegro web portal E-zdravlje. [Internet]. [pristupljeno 19.11.2021.]. Dostupno na: https://www.ezdravlje.me/ZakazivanjePrva/faces/Pocetna;jsessionid=852477a74e392f681a754209a93.[HTTP]

12. Wanat M, Hoste M, Gobat N, Anastasaki M, Böhmer F, Chlabicz S, et al. Transformation of primary care during the COVID-19 pandemic: experiences of healthcare professionals in eight European countries. Br J Gen Pract. 2021 Jul 29;71(709):e634-42. doi: 10.3399/BJGP.2020.1112.[CROSSREF]

13. Morreel S, Philips H, Verhoeven V. Organisation and characteristics of outof-hours primary care during a COVID-19 outbreak: A real-time observational study. PLoS One. 2020 Aug 13;15(8):e0237629. doi: 10.1371/journal.pone.0237629.[CROSSREF]

14. Shah S, Wordley V, Thompson W. How did COVID-19 impact on dental antibiotic prescribing across England? Br Dent J. 2020 Nov;229(9):601-4. doi: 10.1038/s41415-020-2336-6.[CROSSREF]


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