1. Department of Clinical Laboratory; The Affiliated Hospital of Qingdao University; Qingdao China
2. Department of Psychiatry; Medical College; Qingdao University; Qingdao China
3. Reproductive Medicine Centre; The Affiliated Hospital of Qingdao University; Qingdao China
4. Department of Clinical Laboratory; Qingdao Women & Children Medical Healthcare Center; Qingdao China
5. The Affiliated Hospital of Qingdao University; Qingdao China
6. Graduate School; Peking Union Medical College; Beijing China
7. National Research Institute for Family Planning; Beijing China
8. World Health Organization Collaborating Centre for Research in Human Reproduction; Beijing China
9. Genetic Laboratory; The Affiliated Hospital of Medical College; Qingdao University; Qingdao China
10. Prenatal Diagnosis Center; The Affiliated Hospital of Qingdao University; Qingdao China