[1] Chinese Acad Med Sci, Inst Blood Transfus, Chengdu, Peoples R China
[2] Johns Hopkins Sch Med, Baltimore, MD USA
[3] Chongqing Blood Ctr, Chongqing, Peoples R China
[4] Luoyang Blood Ctr, Luoyang, Peoples R China
[5] Urumqi Blood Ctr, Urumqi, Peoples R China
[6] Mianyang Blood Ctr, Miayang, Peoples R China
[7] Guangxi Blood Ctr, Liuzhou, Peoples R China
[8] RTI Int, Rockville, MD USA
[9] NIH, Bethesda, MD 20892 USA