Alem, Mulubrihan, and Asfaw Atnafu. “Skin Entrance Dose to Patients from Routine P-A Chest X-Ray Examination, Radiology Department, Tikur Anbessa Referral Hospital”. The Ethiopian Journal of Health Development 15, no. 2 (February 9, 2017). Accessed April 19, 2024. https://ejhd.org/index.php/ejhd/article/view/840.