Sinai, N.K. et al. 2025. Correlation Between Heart Rate and Left Ventricular Ejection Fraction in Peripartum Cardiomyopathy Patients at RSUP Dr. M. Djamil Padang. Jurnal Ilmu Kesehatan Indonesia. 6, 1 (Mar. 2025), 1–7. DOI:https://doi.org/10.25077/jikesi.v6i1.1298.