[1] Beijing Red Cross Ctr, Beijing, Peoples R China
[2] Urunchi Blood Ctr Xinjiang Uygur Autonomous Reg, Urumqi, Peoples R China
[3] Yunnan Kunming Blood Ctr, Kunming, Peoples R China
[4] Guangzhou Blood Ctr, Guangzhou, Peoples R China
[5] Natl Inst Control Pharmaceut & Biol Prod, Beijing, Peoples R China
[6] Peking Univ, Hlth Sci Ctr, Beijing 100871, Peoples R China