[1] Harvard Univ, Sch Med, Dana Farber Canc Inst, Jerome Lipper Multiple Myeloma Ctr,Dept Adult Onc, Boston, MA 02115 USA
[2] Harvard Univ, Sch Med, Dept Med, Boston, MA 02115 USA
[3] Celgene Corp, Warren, NJ USA
[4] Humboldt Univ, Med Ctr, Charite, Robert Roessle Klin, Berlin, Germany