Fuzzy based classification and COVID-19 Patient’s Data analysis. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 3, p. 339–354, 2022. DOI: 10.47750/pnr.2022.13.03.054. Disponível em: https://pnrjournal.com/index.php/home/article/view/425.. Acesso em: 5 jun. 2026.