Refa Perdana Mukti, & 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