Yulia, Vera, Mefri Yanni, and Didik Hariyanto. 2017. “Diagnostic Value of Left Ventricular Early Inflow-Outflow Index in Determining Severity of Mitral Regurgitation”. Indonesian Journal of Cardiology 38 (2), 64-71. https://doi.org/10.30701/ijc.v38i2.729.