Iyer P, Modi JN. Menstrual cycle characteristics and associated physical problems among school going adolescent girls. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Feb. 9 [cited 2025 Oct. 26];4(4):1076-8. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/2066