APA (7th ed.) Citation

Biernacki, M. Assessment of the efficiency and effectiveness of health care systems in European Union countries before and during the COVID-19 pandemic. Frontiers Media S.A.

Chicago Style (17th ed.) Citation

Biernacki, Marek. Assessment of the Efficiency and Effectiveness of Health Care Systems in European Union Countries Before and During the COVID-19 Pandemic. Frontiers Media S.A.

MLA (9th ed.) Citation

Biernacki, Marek. Assessment of the Efficiency and Effectiveness of Health Care Systems in European Union Countries Before and During the COVID-19 Pandemic. Frontiers Media S.A.

Warning: These citations may not always be 100% accurate.