Mudawi Hatim M Y, Saeed Osman K
Department of Internal Medicine, Faculty of Medicine, University of Khartoum, Sudan.
Department of Internal Medicine, Faculty of Medicine, University of Gezira, Sudan.
Arab J Gastroenterol. 2013 Dec;14(4):141-2. doi: 10.1016/j.ajg.2013.09.005. Epub 2013 Dec 2.