[1] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Oncol, Div Hematol, Bronx, NY 10467 USA
[2] Chinese Univ Hong Kong, Partner State Key Lab Oncol South China, Sir YK Pao Ctr Canc, Dept Clin Oncol,Hong Kong Canc Inst, Shatin, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, Prince Wales Hosp, Shatin, Hong Kong, Peoples R China
[4] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA
[5] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Internal Med, Div Infect Dis, Bronx, NY 10467 USA
[6] Univ Hosp Case Med Ctr, Dept Hematol & Oncol, Cleveland, OH USA