Dr. Venkatesha K.R., and Dr. R Ravikumar Naik. “Co-Relation Between Childhood Asthma and Serum Vitamin D Levels – a Cross Sectional Study”. Pediatric Review: International Journal of Pediatric Research 5, no. 12 (December 31, 2018): 642-646. Accessed November 24, 2024. https://pediatrics.medresearch.in/index.php/ijpr/article/view/453.