Iyer, P. and Modi, J.N. 2017. Menstrual cycle characteristics and associated physical problems among school going adolescent girls. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 4, 4 (Feb. 2017), 1076–1078. DOI:https://doi.org/10.18203/2320-1770.ijrcog20150430.