Social Media Promotion of a Telehealth-based Vaccine Delivery System at the Outpatient Department: a Quasi-Experimental Study. Acta Med Philipp [Internet]. 2024 Jul. 31 [cited 2025 Apr. 19];58(13). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/7549