Fungsi Intrinsik Miokard Ventrikel Kiri pada Stenosis Katup Mitral: Evaluasi Sebelum dan Sesudah Balloon Mitral Valvotomy - Nisa Ike Rini Asnil; Dept Cardiology and Vascular Medicine, Medical Faculty, University of Indonesia National Cardiovascular Centre, Harapan Kita, Jakarta (Faculty of Medicine Universitas Indonesia, 2018)