Khan, Hidayat Ullah, Mohib Ullah Khan, Naveed Yousaf, and Saeed Ullah Khan. “Etiology of Cleft Lip and Palate”. Journal of Postgraduate Medical Institute 9, no. 2 (August 28, 2011). Accessed May 5, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/497.