Health Benefit Utilization and Out-of-Pocket Expenses in Outpatient Care and Hospitalizations: Baseline Surveys of Three Primary Care Sites in the Philippines. Acta Med Philipp [Internet]. 2024 Sep. 13 [cited 2025 Apr. 6];58(16). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/7453