[1] Sichuan Coll Trandit Chinese Med, Mianyang, Sichuan, Peoples R China
[2] Mianyang 404 Hosp, Dept Infect Dis, Mianyang, Sichuan, Peoples R China
[3] Soochow Univ, Jiangsu Inst Hematol, Affiliated Hosp 1, Cyrus Tang Hematol Ctr, Suzhou 215123, Peoples R China
[4] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Dept Pathol, 330 Brookline Ave,CLS 628B, Boston, MA 02215 USA