Dhingra, U., Hiremath, G., Menon, V. P., Dhingra, P., Sarkar, A. and Sazawal, S. (2009) “Zinc Deficiency: Descriptive Epidemiology and Morbidity among Preschool Children in Peri-urban Population in Delhi, India”, Journal of Health, Population and Nutrition, 27(5), pp. 632–639. doi: 10.3329/jhpn.v27i5.3639.