Feng Meining1, Pan Lie1, Liu Jie2 <br>(Xianyang Central Hospital: 1. Department of Reproductive Medicine, Department of Obstetrics and Gynecology, Xianyang, Shaanxi, 712000)
Feng Meining 1, Pan Li 1, Liu Jie 2<br>(Xianyang City Central Hospital: 1. Department of Reproductive Medicine, Obstetrics and Gynecology, Xianyang, Shaanxi Province, 712000)
Feng Meining 1, pan lie 1, Liu Jie 2<br>(Xianyang Central Hospital: 1. Department of reproductive medicine, obstetrics and Gynecology, Xianyang, Shaanxi, 712000)<br>