Impact of Primary Care Benefits on Outpatient Health Care Utilization and Estimated Out-of-Pocket Expenses: A Follow-up Pre-post Study of Three Primary Care Sites in the Philippines. Acta Med Philipp [Internet]. 2026 Aug. 31 [cited 2026 Sep. 1];60(16). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/13473