Haque, Md Serajul, HI Lutfur Khan, Razia Mahmud, Md Faruq, Abdul Chowdury, and M Ali. “Pulmonary Artery Pressure Profile in Atrial Septal Defect (ASD) Patients”. Bangladesh Heart Journal 30, no. 1 (June 13, 2016): 27-28. Accessed August 11, 2020. https://www.banglajol.info/index.php/BHJ/article/view/28133.