Perception Toward Use Of Face Mask During Covid 19 Pandemic Among Adults In Khordha District A Cross Sectional Study. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, p. 2425–2433, 2022. DOI: 10.47750/pnr.2022.13.S05.378. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/4121.. Acesso em: 23 jun. 2026.