Asad, Shawana, Hafizullah Khan, Ishtiaq Ali Khan, Sher Ali, Salma Ghaffar, and Zia ur Rehman. 2011. “AETIOLOGICAL FACTORS IN MECHANICAL INTESTINAL OBSTRUCTION”. Journal of Ayub Medical College Abbottabad 23 (3):26-27. https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/2418.