KHAN, Muhammad Ahmed; AKRAM, Sumera; USMAN, Hassan Bin. POLIO IMMUNIZATION AND AWARENESS: A CROSS SECTIONAL STUDY IN SHANGLA AND SWAT DISTRICTS, PAKISTAN. Journal of Postgraduate Medical Institute, [S. l.], v. 30, n. 2, 2016. Disponível em: https://jpmi.org.pk/index.php/jpmi/article/view/1725. Acesso em: 5 dec. 2025.