[1] Peter MacCallum Canc Inst, Canc Immunol Program, Sir Donald & Lady Trescowthick Labs, Melbourne, Vic 3002, Australia
[2] Juntendo Univ, Sch Med, Dept Immunol, Tokyo 1138421, Japan
[3] Immunex Corp, Seattle, WA 98101 USA
[4] Mem Sloan Kettering Canc Ctr, Dept Med, New York, NY 10021 USA