[1] Oregon Hlth & Sci Univ, Inst Canc, Portland, OR 97239 USA
[2] Med Mannheim Univ Heidelberg, Fak Klin, Med Klin 3, Mannheim, Germany
[3] Univ Leipzig, Dept Hematol, D-7010 Leipzig, Germany
[4] Hyogo Med Ctr Adults, Div Clin Res, Akashi, Hyogo, Japan
[5] Inst Med & Vet Sci, Adelaide, SA 5000, Australia
[6] Singapore Gen Hosp, Dept Hematol, Singapore 0316, Singapore
[7] Univ Halle Wittenberg, Dept Hematol Oncol, D-4010 Halle An Der Saale, Germany
[8] Univ Bologna, Inst Hematol & Med Oncol Seragnoli, I-40126 Bologna, Italy
[9] Howard Hughes Med Inst, Portland, OR USA