Pulmonary Hypertension in Patent Ductus Arteriosus: Correlation with Ductal Size - A Single Center Experience. Chattagram Maa-O-Shishu Hospital Medical College Journal, [S. l.], v. 25, n. 1, p. 66–68, 2026. DOI: 10.3329/cmoshmcj.v25i1.89899. Disponível em: https://www.banglajol.info/index.php/CMOSHMCJ/article/view/89899. Acesso em: 30 jun. 2026.