[1] HVIDOVRE HOSP,STATENS SERUMINST,DEPT CLIN MICROBIOL,DK-2650 HVIDOVRE,DENMARK
[2] RIGSHOSP,DEPT BLOOD GRP,DK-2100 COPENHAGEN O,DENMARK
[3] RIGSHOSP,BLOOD BANK,DK-2100 COPENHAGEN O,DENMARK
[4] RIGSHOSP,STATENS SERUMINST,DEPT CLIN MICROBIOL,DK-2100 COPENHAGEN O,DENMARK
[5] UNIV COPENHAGEN,RIGSHOSP,INFECT DIS CLIN,IMMUNOL LAB,COPENHAGEN,DENMARK