HBV Catch-up Vaccination in Children and Adults with Incomplete or Unknown Vaccination to Reduce Hepatitis B-related Morbidity: A Systematic Review. Acta Med Philipp [Internet]. 2025 Aug. 30 [cited 2025 Oct. 3];59(12). Available from: https://luna.upm.edu.ph/index.php/acta/article/view/9874