Proklamartina, N., Prakoso, R., Lilyasari, O., Ariani, R., Siagian, S. and Soesanto, A. 2021. Pulmonary Doppler Notch Pattern in Relation with Pulmonary Vascular Resistance Index in Patients with Atrial Septal Defect. Indonesian Journal of Cardiology. 41, 3 (Mar. 2021). DOI:https://doi.org/10.30701/ijc.1053.