“Heart Rate Variability Analysis to Investigate Autonomic Nervous System Activity Among the Three Premature Ventricular Complex Circadian Types: An Observational Study”. Acta Medica Philippina 59, no. 1 (January 15, 2025). Accessed April 10, 2025. https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/8356.