[1] WILHELMINA CHILDRENS HOSP, DEPT IMMUNOL, NL-3501 CA UTRECHT, NETHERLANDS
[2] RUSH MED SCH, DEPT IMMUNOL, CHICAGO, IL 60612 USA
[3] CSC SCI COMP, ESPOO 02101, FINLAND
[4] UNIV S FLORIDA, ALL CHILDRENS HOSP, COLL MED, DEPT PEDIAT, ST PETERSBURG, FL 33701 USA
[5] UNIV WASHINGTON, DEPT PEDIAT, SEATTLE, WA 98195 USA
[6] CENT REPUBLICAN PAEDIAT HOSP, RES INST PAEDIAT HEMATOL, DEPT CLIN IMMUNOL, MOSCOW 117513, RUSSIA
[7] MED COLL PENN & HAHNEMANN UNIV, PHILADELPHIA, PA 19102 USA
[8] ROYAL FREE HOSP, SCH MED, DEPT CLIN IMMUNOL, LONDON NW3 2PF, ENGLAND
[9] KAROLINSKA INST, NOVUM, CTR BIOTECHNOL, DEPT BIOSCI, S-14157 HUDDINGE, SWEDEN
[10] HUDDINGE UNIV HOSP, KAROLINSKA INST, DEPT IMMUNOL MICROBIOL PATHOL & INFECT DIS, S-14186 HUDDINGE, SWEDEN