Ryanti, D., Ketaren, A., Muhktar, Z., Akbar, N., Lubis, A. and Ardini, T. 2025. Correlation between Peak Left Atrial Longitudinal Strain and The Severity of Mitral Valve Disease at Haji Adam Malik General Hospital Medan. Indonesian Journal of Cardiology. 46, 4 (Dec. 2025), 241. DOI:https://doi.org/10.30701/ijc.2019.