[1] Oregon Hlth Sci Univ, Inst Canc, Portland, OR 97201 USA
[2] Univ Leipzig, Dept Hematol, D-7010 Leipzig, Germany
[3] Univ Heidelberg, D-6800 Mannheim, Germany
[4] Hyogo Med Ctr Adults, Div Clin Res, Akashi, Hyogo, Japan
[5] Singapore Gen Hosp, Dept Hematol, Singapore 0316, Singapore
[6] Univ Bologna, Inst Hematol & Med Oncol Seragnoli, I-40126 Bologna, Italy
[7] Univ Halle Wittenberg, Dept Hematol Oncol, Halle Saale, Germany