1. Reproductive Center, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China (mainland)
2. Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China (mainland)
3. Beijing Genomics Institute Shenzhen (BGI-Shenzhen), Shenzhen, Guangdong, China (mainland)
4. Department of Blood Transfusion, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, China (mainland)
5. Clinical Laboratory of Beijing Genomics Institute Health, BGI-Shenzhen, Shenzhen, Guangdong, China (mainland)
6. Medical College, Nankai University, Tianjin, China (mainland)