Refa Perdana Mukti, and Gema Nazri Yanni. 2020. “RISK FACTORS OF CONGENITAL ANOMALIE AT HAJJ ADAM MALIK GENERAL HOSPITAL AND UNIVERSITY OF NORTH SUMATERA HOSPITAL IN 2017-2019.”. Sumatera Medical Journal 3 (3). https://doi.org/10.32734/sumej.v3i3.3727.