Effect of Traditional Chinese Medicine (TCM) on Embryo Implantation in In-vitro Fertilization (IVF) Patients
To investigate the impact of traditional Chinese medicines (TCM) on embryonic implantation in the patients who have underwent in vitro fertilization and embryo transfer, the investigators compare the pregnancy rate in traditional Chinese medicine group and control group. The hypothesis is that pregnancy rate in traditional Chinese medicine group is higher than the control group.