[1] Case Western Reserve Univ, Div Hematol Oncol, Cleveland, OH 44106 USA
[2] Case Western Reserve Univ, Ireland Canc Ctr, BRB 3, Cleveland, OH 44106 USA
[3] Univ Hosp Cleveland, Cleveland, OH 44106 USA
[4] Baylor Coll Med, Dept Pediat, Houston, TX 77030 USA
[5] Pharmacia, Kalamazoo, MI USA
[6] Pharmacia, Peapack, NJ USA
[7] Harvard Univ, Sch Med, Massachusetts Gen Hosp, Hematol Oncol Unit, Boston, MA USA