Kalvakuri NR, Nalisetty S. Serum zinc levels and effect of zinc and vitamin A supplementation in children with diarrhea: a randomized control study. Int J Contemp Pediatr [Internet]. 2017 Jun. 21 [cited 2025 Nov. 24];4(4):1501-5. Available from: https://www.ijpediatrics.com/index.php/ijcp/article/view/914