Pakala, C.R. and Gujjula, S. 2016. Age at menarche and menstrual complications: a cross cultural study among hostel students in Tirupati, Chittoor district, Andhra Pradesh, India. International Journal of Research in Medical Sciences. 4, 5 (Dec. 2016), 1688–1691. DOI:https://doi.org/10.18203/2320-6012.ijrms20161250.