“Hospitalization Expenditure of COVID-19 Patients at the University of the Philippines-Philippine General Hospital (UP-PGH) With PhilHealth Coverage”. Acta Medica Philippina 55, no. 2 (April 28, 2021). Accessed April 20, 2025. https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/2809.