Kalvakuri, Nageswara Rao, and Sushma Nalisetty. “Serum Zinc Levels and Effect of Zinc and Vitamin A Supplementation in Children With Diarrhea: A Randomized Control Study”. International Journal of Contemporary Pediatrics 4, no. 4 (June 21, 2017): 1501–1505. Accessed November 24, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/914.