[1] Univ Penn, Div Hematol & Oncol, Philadelphia, PA 19104 USA
[2] Novartis Pharmaceut, E Hanover, NJ USA
[3] Anal Grp Inc, Boston, MA USA
[4] Oregon Hlth & Sci Univ, Knight Canc Inst, Portland, OR 97201 USA
[5] Univ Amsterdam, Med Ctr, Amsterdam, Netherlands