GNRH1 and polycystic ovary syndrome: Stimulation protocols differed significantly between the PCOS and control groups: GnRH antagonist protocol, 109/263 (41.44%) vs. 110/526 (20.91%), respectively; long GnRH agonist protocol, 154/263 (58.56%) vs. 416/526 (79.09%), respectively (p<0.001).