Objective:To investigate the effects of Erzhi Tiangui Granules on the concentration of LIF in follicular fluid (FF),the quality of oocytes/embryos and pregnancy outcome after IVF-ET.

• 目的：探讨二至天癸颗粒对体外受精-胚胎移植(IVF-ET)周期人卵泡液中白血病抑制因子(LIF)水平和卵泡质量的影响。