Rahman, M. ur, Rahman, S. ur, ul Iman, N. and Khan, T. M. (2011) “Aetiology of upper Gastrointestinal Haemorrhage in Medical ward”, Journal of Postgraduate Medical Institute, 14(2). Available at: https://www.jpmi.org.pk/index.php/jpmi/article/view/697 (Accessed: 4 May 2024).