“…Menstrual frequency and hormones (follicle stimulating hormone (FSH), luteotropic hormone (LH), LH/FSH, and testosterone (T)) were the most common measurements used in evaluating the effect of a therapy on PCOS, and they were available in 25 of the 31 included trials (Zhao et al, 2007;Shi et al, 2009;Stener-Victorin et al, 2009;2013;Lai et al, 2010;Li and Han, 2010;Jedel et al, 2011;Li and Zhang, 2011;Li Y.L. et al, 2011;Pastore et al, 2011;Cui Y. et al, 2012;Franasiak et al, 2012;Liu et al, 2012;Liang et al, 2013a;2013b;Wang and Gu, 2013;Wang and Li, 2013;Zhang, 2013;Zheng et al, 2013;He, 2014;Jin et al, 2014;Leonhardt et al, 2014;Li L. et al, 2014;Lin, 2014;Liang, 2015a;2015b;Qiu et al, 2015;Wang, 2015). Anthropometric measurements, such as body weight, body mass index (BMI), waist, waist-hip ratio (WHR), and the FerrimanGallwey score were available in 10 of the 31 included trials (Zhao et al, 2007;Stener-Victorin et al, 2009;2013;Lai et al, 2010;Jedel et al, 2011;Liu et al, 2012;Zheng et al, 2013;Jin et al, 2014;Leonhardt et al, 2014;Liang, 2015a;…”