Analyze the clinical outcome of poor responders in IVF-ET;

Effect of long-acting GnRH-a on the outcome of IVF-ET in patients with endometriosis;

Down regulation in older women undergoing IVF-ET;

Analysis of perinatal outcome of twin pregnancies conceived by in vitro fertilization and embryo transfer (IVF-ET) and those conceived spontaneously;

Risk factors of ectopic pregnancy after in vitro fertilization and embryo transfer;

Effect of Prostaglandin E_2 on patients with luteinized unruptured follicle syndrome during in vitro fertilization and embryo transfer;

Effect of salpingectomy and aspirating in treatment for hydrosalpinx before in vitro fertilization-embryo transfer;

Analysis of Uterine Cavity of Patients After in Vitro Fertilization-Embryo Transfer Failure by Hysteroscopy;

Clinical Analysis of the Causes and Outcomes of Vaginal Bleeding After in Vitro Fertilization-Embryo Transfer

Objective To know the prevalence of anxiety and depression and it s risk factors among infertile women with the treatment of in vitro fertilization and embryo transfer(IVF-ET),documented for anxiety and depression intervention.

Objective:To investigate the influential factors on the pregnancy outcome of in vitro fertilization and embryo transfer(IVF-ET).

Objective To compare the outcome of two different dosage forms of GnRH-a on the long down regulation protocol of the controlled ovarian hyperstimulation(COH) in vitro fertilization and embryo transfer(IVF-ET).

Objective: To compare the effect and expenses of half-dose Gonadotropin Releasing Hormone Agonist (GnRHa) with full-dose GnRHa, domestic Gonadotropic Hormone (Gn) with imported Gn which are used for controlled ovarian hyperstimulation (COH) in In Vitro Fertilization-Embryo Transfer(IVF-ET).

Objective:To investigate the relationship between the apoptosis rate of ovarian granulosa cells and pregnancy outcomes in vitro fertilization-embryo transfer(IVF-ET).

Objective To compare the fertilization rate and embryonic development of oocytes inseminated by conventional in vitro fertilization(IVF) or intracytoplasmic sperm injection(ICSI) in patients with normozoospermic semen during IVF cycle.