The ideal cultivating system of the implantation model is blastocyst with EECs in medium including 3% FCS or 0.4% BSA, and can be used to reseach the influencing factors in implantation.

• 因此胚泡与子宫内膜上皮细胞用FCS共培养与用BSA共培养都是比较理想的着床模型，可以用来体外研究着床的影响因素。