Association of Serum Vitamin D Levels, IL-17a Levels with Disease Severity among 3- to 18-year-old Children with Asthma in the Philippine General Hospital. Acta Med Philipp [Internet]. 2022 May 26 [cited 2025 Apr. 12];56(9). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/5374