1. Peking Union Medical College Hospital, Beijing, China
2. Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
3. Beijing Children's Hospital and Capital Medical University, Beijing, China
4. Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
5. Bayer AG, Wuppertal, Germany
6. Bayer, Beijing, China
7. Nanfang Hospital, Southern Medical University, Guangzhou, China