[1]
Y. H. M. Gultom and H. Martini, “Pulmonary Hypertension After Atrial Septal Defect (ASD) Closure: Clinical Review And Future Challenges”, J. Klin. Ris. Kes., vol. 6, no. 1, pp. 29–37, Oct. 2026, doi: 10.11594/jk-risk.06.1.5.