Zewude, Wuletaw Chane, Luli Baissa, Yishak Suga, and Yishak Suga. 2020. “Needle Stick and Sharp Injuries Among Residents Practicing Surgical Intervention in a Tertiary Hospital, Addis Ababa, Ethiopia”. Ethiopian Medical Journal 58 (03). https://www.emjema.org/index.php/EMJ/article/view/1470.