URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/an-electrocardiographic-score-to-predict-pulmonary-hypertension-in-children-with-atrial-septal-defect-dcfcd07e645d245babe887e5e2daa016/7d03a041-42ef-11ee-8f67-e4434b0aade8