KHAN, A. R.; KHAN, M. U.; ULLAH, S.; ULLAH, H.; SHAH, J. Nasopharyngeal Carcinoma Study of 20 cases. Journal of Postgraduate Medical Institute, [S. l.], v. 13, n. 2, 2011. Disponível em: https://www.jpmi.org.pk/index.php/jpmi/article/view/658. Acesso em: 29 mar. 2024.