Objective: To Investigate the expression and the significance of endometrial TH1/TH2 cytokmes throughout menstrual cycle and early pregnancy in healthy women and unhealthy women with unexplained recurrent spontaneous abortion (URSA).

• 目的：探讨TH_1/TH_2型细胞因子在正常与原因不明复发性流产妇女月经周期内膜及早孕蜕膜中的表达及意义。