1. West China School of Public Health and West China Fourth Hospital Sichuan University Chengdu Sichuan China
2. Department of Pathology Johns Hopkins Medical Institutions Baltimore Maryland
3. Chongqing Blood Center Chongqing China
4. Henan Provincial Blood Center Zhenzhou Henan China
5. Guangxi Center for Disease Prevention and Control Nanning Guangxi China
6. Mianyang Blood Center Mianyang Sichuan China
7. Luoyang Blood Center Luoyang Henan China
8. Chengdu Blood Center Chengdu Sichuan China
9. Xinjiang Provincial Blood Center Urumqi Xinjiang China
10. Institute of Blood Transfusion Chinese Academic of Medical Science Chengdu Sichuan China
11. RTI International Research Triangle Park North Carolina
12. Department of Pathology Stanford University Palo Alto California