MASOOD, S.; UNZELA GHULAM; ZAHRA RAHMATULLAH; SHAYANA RUKHSAR HASHMANI. MASKNE - Prevalence and association of causative factors during Covid-19 pandemic at a tertiary care hospital of Karachi. Journal of the Pakistan Medical Association, [S. l.], v. 73, n. 6, p. 1221–1225, 2023. DOI: 10.47391/JPMA.6734. Disponível em: https://mail.jpma.org.pk/index.php/public_html/article/view/6734. Acesso em: 20 apr. 2026.