TAGAEV, T.; VITYALA, Y.; ZHUMABEKOVA, A.; PARIHAR, Y.; NARASIMHARAJ, A. Coronavirus disease 2019: ethical and epidemiological issues with clinical trials. European Journal of Clinical and Experimental Medicine, [S. l.], v. 19, n. 2, p. 197–199, 2021. DOI: 10.15584/ejcem.2021.2.14. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/11896. Acesso em: 18 jan. 2026.