GNRH1 and polycystic ovary syndrome: Our results partially agree with the results of the cross-sectional study of Nejabati et al. [29], which could not detect any significant differences in FF PlGF levels between poor responders (n = 30), normo-responders (n = 40), and high responders (n = 20) among non-PCOS women that undergone IVF/ICSI cycles with the long GnRH agonist protocol.