Basworo, A. dan Subagjo, A. 2021. Cardio-vocal Syndrome as a Complication Patient with Severe Mitral Regurgitation and Moderate Aortic Regurgitation with Pulmonary Hypertension. Qanun Medika - Jurnal Kedokteran FK UMSurabaya. 5, 1 (Jan 2021), 145–151. DOI:https://doi.org/10.30651/jqm.v5i1.4775.