TY - JOUR T1 - Case 2 / 2019 - Complete Atrioventricular Septal Defect, with Down Syndrome, without Pulmonary Hypertension and Natural History at 33 Years of Age JO - Arquivos Brasileiros de Cardiologia A1 - Atik, Edmar A1 - Barreto, Alessandra Costa A1 - Binotto, Maria Angélica SN - 0066-782X UL - 10.5935/abc.20190024 VL - 112 Y1 - 2019 PB - Brasil ER -