1. Shenzhen Blood Center, Shenzhen, China.
2. Department of Blood Transfusion, The First Affiliated Hospital of Shenzhen University School of Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China.
3. Shenzhen Center for Disease Control and Prevention, Shenzhen, China.
4. Shenzhen Third People's Hospital, Shenzhen, China.
5. National Center for Clinical Laboratories, Beijing Hospital, Beijing, China.