Kalvakuri, N.R. and Nalisetty, S. 2017. 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, 4 (Jun. 2017), 1501–1505. DOI:https://doi.org/10.18203/2349-3291.ijcp20172694.