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Pulmonary Hypertension in Patent Ductus Arteriosus: Correlation with Ductal Size - A Single Center Experience. Chatt Maa Shi Hosp Med Coll J [Internet]. 2026 Jun. 9 [cited 2026 Jun. 30];25(1):66-8. Available from: https://www.banglajol.info/index.php/CMOSHMCJ/article/view/89899