[1] Univ Milano Bicocca, Monza, Italy
[2] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[3] Emory Univ, Winship Canc Inst, Atlanta, GA 30322 USA
[4] Univ Bologna, Ist Ematol, Bologna, Italy
[5] Christian Med Coll & Hosp, Vellore, Tamil Nadu, India
[6] Wyeth, Paris, France
[7] Pfizer Res, Cambridge, MA USA
[8] Univ Klinikum Aachen & Hamburg Eppendorf, Aachen, Germany