1. Shanghai Changzheng Hospital and Second Military Medical University; Shanghai China
2. Princess Alexandra Hospital and University of Queensland, Brisbane; Queensland Australia
3. Second Military Medical University; Shanghai China
4. Huashan Hospital and Fudan University; Shanghai China
5. Guanghua Hospital; Shanghai China
6. Nanjing Medical University; Nanjing China
7. Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College; Beijing China
8. People's Hospital and Beijing University; Beijing China
9. Beijing Chaoyang Hospital and Capital Medical University; Beijing China
10. 202nd Hospital of People's Liberation Army; Shenyang China
11. West China Hospital and Sichuan University; Chengdu China
12. Southwest Hospital and Third Military Medical University; Chongqing China
13. First Affiliated Hospital of Anhui Medical University; Hefei China
14. People's Hospital of Fujian Province and Fujian University of Traditional Chinese Medicine; Fuzhou China
15. Shanghai Changhai Hospital and Second Military Medical University; Shanghai China
16. Huadong Hospital and Fudan University; Shanghai China
17. Zhongshan Hospital and Fudan University; Shanghai China
18. Shanghai First People's Hospital Affiliated with Shanghai Jiaotong University; Shanghai China
19. Lanzhou University Second Hospital; Lanzhou China
20. Second Affiliated Hospital of Harbin Medical University; Harbin China
21. Beijing Hospital; Beijing China
22. Xiangya Hospital and Central South University; Changsha China
23. Shanghai Changzheng Hospital and Second Military Medical University, Shanghai, China, and 442nd Hospital of Fuzhou General Hospital, Nanjing Military Region; Ningde China
24. Third Military Medical University; Chongqing China
25. National Institute for Food and Drug Control; Beijing China
26. Fudan University; Shanghai China
27. National Research Institute for Family Planning; Beijing China
28. National Research Institute for Family Planning and Capital Medical University; Beijing China
29. Anhui Medical University; Anhui China