Kumar, A KSiddhu, C MChandra, M RKishore, K1976-12-012009-05-301976-12-012009-05-301976-12-01Kumar AK, Siddhu CM, Chandra MR, Kishore K. Serum vitamin A level of secondary school children. Indian Journal of Pediatrics. 1976 Dec; 43(347): 368-77http://imsear.searo.who.int/handle/123456789/80756engAdolescentCarotenoids --bloodChildHumansIndiaMaleVitamin A --bloodVitamin A Deficiency --bloodSerum vitamin A level of secondary school children.Journal Article