Sachithananthan, V., & Chandrasekhar, U. (2005). Nutritional Status and Prevalence of Vitamin A Deficiency among Preschool Children in Urban Slums of Chennai City. The Indian Journal of Nutrition and Dietetics, 42(6), 259–265. Retrieved from https://informaticsjournals.co.in/index.php/ijnd/article/view/6425