Ullah, Saeed, Mohib Ullah, Naveed Yousaf, Shahkar Ahmad, and Zahoor Ahmad Khan. “Curative Surgery In the Treatment of Advanced Cancer of the Hypopharynx and Cervical Oesophagus”. Journal of Postgraduate Medical Institute 5, no. 2 (August 23, 2011). Accessed April 19, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/404.