Luo L, Chen M, Wen Y, et al. - Via performing an open‐label, randomized, controlled trial, researchers sought to compare the live birth rate and cost effectiveness of artificial cycle‐prepared frozen embryo transfer (AC‒FET) with vs without GnRH agonist (GnRH‐a) pretreatment for women with polycystic ovary syndrome (PCOS). Among 343 included women with PCOS (aged 24‒40 years), who were scheduled for AC‒FET and receiving no more than two blastocysts, 172 formed the pretreatment group and received GnRH‐a pretreatment; and 171 formed the control group and did not received GnRH. Outcomes revealed that among women with PCOS receiving AC‒FET, there was no improvement in pregnancy outcomes but significantly increases in patient cost in correlation with pretreatment with GnRH‐a.