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 (Aug. 2020). DOI:https://doi.org/10.32734/sumej.v3i3.3727.