[1] NORWEGIAN RADIUMHOSP,IMMUNOL LAB,N-0310 OSLO,NORWAY
[2] NATL HOSP,INST TRANSPLANTAT IMMUNOL,N-0027 OSLO,NORWAY
[3] UNIV HOSP LEIDEN,BLOOD BANK,2300 RC LEIDEN,NETHERLANDS
[4] UNIV HOSP LEIDEN,DEPT IMMUNOHEMATOL,2300 RC LEIDEN,NETHERLANDS
[5] CENT VET INST,8200 AB LELYSTAD,NETHERLANDS
[6] KUWAIT UNIV,FAC MED,DEPT MICROBIOL,SAFAT,KUWAIT