HAMID, S. M.; SIDDIQUI, M. I.; AKHTAR, S.; RAEF, Q. M.; KHALID, M.; KHAN, F.; HASHMI, S. EFFICACY OF FLU VACCINE AMONG HAJJ PILGRIMS. Pakistan Journal of Chest Medicine, [S. l.], v. 21, n. 3, p. 96–9, 2016. Disponível em: https://pjcm.net/index.php/pjcm/article/view/367. Acesso em: 12 mar. 2026.