[1] CTR BLOOD RES,BOSTON,MA
[2] MED SCH CAMBRIDGE,MRC,MECHANISM TUMOR IMMUN GRP,CAMBRIDGE CB2 2QH,ENGLAND
[3] INST IMMUNHAMATOL,FRANKFURT,FED REP GER
[4] INST IMMUNOL,MUNCHEN,FED REP GER
[5] RIKSHOSP,INST FORENS MED,OSLO,NORWAY
[6] INST RECHTS MED,BONN,FED REP GER