Rosa, Amrina Dwi, Hidayani Fazriah, and Trimawar tinah. “Correlation of Left Ventricular Systolic Function and Severity of Mitral Regurgitation in Patient With Heart Failure Reduced Ejection Fraction”. ARKAVI [Arsip Kardiovaskular Indonesia) 4, no. 1 (January 1, 2019): 224-227. Accessed June 29, 2022. https://journal.uhamka.ac.id/index.php/arkavi/article/view/5487.