1. Kupesic S, Bekavac I, Bjelos D, et al. Assessment of endometrial receptivity by transvaginal color Doppler and three-dimensional power Doppler ultrasonography in patients undergoing in vitro fertilization procedures [J]. J Ultrasound Med,2001,20:125-134.
2. N,Sharma Mahajan S. The endometrium in assisted reproductive technology: How thin is thin? [J]. J Hum Reprod Sci,2016,9:3-8.
3. Heger A,Sator M,Pietrowski D.Endometrial receptivity and its predictive value for IVF/ICSI outcome [J]. Geburtshilfe Frauenheilkd,2012,72:710-715.