Restrepo Valencia, César Augusto, and José Vicente Aguirre Arango. “Vitamin D (25 ( OH) D ) in Patients With Chronic Kidney Disease Stages 2-5”. Colombia Medica 50, no. 1 (May 24, 2024): 1. Accessed July 3, 2024. https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/3921.