Jehangiri, Attique-ur-Rehman, Rahaid Gul, Rania Hadayat, Adil Naseer Khan, Zabiullah ., and Liaqat Khursheed. 2017. “CAUSES OF LOWER GASTROINTESTINAL BLEEDING ON COLONOSCOPY”. Journal of Ayub Medical College Abbottabad 29 (3):468-71. https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/1324.