[1] Washington Univ, Sch Med, Siteman Canc Ctr, St Louis, MO USA
[2] BC Canc Ctr Lymphoid Canc, Vancouver, BC, Canada
[3] Univ British Columbia, Vancouver, BC, Canada
[4] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA
[5] Univ Penn, Abramson Canc Ctr, Lymphoma Program, Philadelphia, PA 19104 USA
[6] McGill Univ, Jewish Gen Hosp, Montreal, PQ, Canada
[7] Royal Adelaide Hosp, Adelaide, SA, Australia
[8] Princess Margaret Canc Ctr, Toronto, ON, Canada
[9] Hosp Univ La Paz, Madrid, Spain
[10] Heidelberg Univ, Heidelberg, Germany
[11] St Vincents Hosp, Sydney, NSW, Australia
[12] Royal North Shore Hosp, Sydney, NSW, Australia
[13] Univ Melbourne, St Vincents Hosp, Melbourne, Vic, Australia
[14] MD Anderson Canc Ctr, Houston, TX USA
[15] Genentech Inc, San Francisco, CA 94080 USA
[16] F Hoffmann La Roche Ltd, Mississauga, ON, Canada
[17] Roche Prod Ltd, Welwyn Garden City, Herts, England
[18] City Hope Natl Med Ctr, Duarte, CA USA