Adhualia, A., M. Maurya, and A. D. Tewari. “Development Delay in Children With Severe Acute Malnutrition and Its Association With Vitamin B12 Deficiency”. International Journal of Contemporary Pediatrics, vol. 6, no. 6, Oct. 2019, pp. 2484-8, doi:10.18203/2349-3291.ijcp20194721.