Hanks, L., C. Lin, G. Tefera, and N. Seyoum. “Abdominal Surgical Emergencies at Tikur Anbessa Specialized Hospital in Ethiopia; A Shifting Paradigm”. East and Central African Journal of Surgery, vol. 19, no. 1, Apr. 2014, pp. 90-94, doi:10.4314/ecajs.v19i1.