1. n/a, Zhejiang University City College, Hangzhou, Zhejiang, China (mainland)
2. Department of Gynecology, Hangzhou Women’s Hospital, Hangzhou, Zhejiang, China (mainland)
3. Department of Prenatal Diagnosis Centre, Hangzhou Women’s Hospital, Hangzhou, Zhejiang, China (mainland)
4. Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China (mainland)