“Relationship of Serum Vitamin D With Liver Disease Severity and Bone Abnormalities in Cholestatic Children”.
Acta Medica Philippina 56, no. 3 (March 3, 2022). Accessed July 9, 2025.
https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/3148.