Peculiarities of COVID-19 course in a multimorbid elderly patient (clinal case report). Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 3, p. 659–661, 2022. DOI: 10.47750/pnr.2022.13.03.097. Disponível em: https://pnrjournal.com/index.php/home/article/view/766.. Acesso em: 5 jun. 2026.