1. Department of Reproduction and Genetics, Reproductive Medical Centre, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Peopleʼs Republic of China
2. Institute of Molecular and Clinical Medicine, Kunming Medical University, Chengong New District, Kunming, Peopleʼs Republic of China
3. Department of Pathology, The First Peopleʼs Hospital of Yunnan Province, Kunming, Peopleʼs Republic of China
4. Department of Obstetrics and Gynecology, Reproductive Medical Centre, Peking University Third Hospital, Haidian District, Beijing, Peopleʼs Republic of China