1. Department of Obstetrics and Gynecology, West China Second University HospitalSichuan UniversityChengduChina
2. The Joint Laboratory for Reproductive MedicineSichuan University-Chinese University of Hong KongHong KongChina
3. Key Laboratory of Birth Defects and Related Diseases of Women and ChildrenSichuan University, Ministry of EducationChengduChina
4. College of EngineeringOhio State UniversityColumbusOhioUSA