[1] KAROLINSKA INST, NOVUM, CTR STRUCT BIOCHEM, S-14157 HUDDINGE, SWEDEN
[2] TURKU UNIV, DEPT BIOCHEM, SF-20500 TURKU, FINLAND
[3] UNIV ALABAMA, HOWARD HUGHES MED INST, BIRMINGHAM, AL 35294 USA
[4] HOP NECKER ENFANTS MALAD, INSERM, U132, F-75015 PARIS 15, FRANCE
[5] UNIV S FLORIDA, COLL MED, ALL CHILDRENS HOSP, DEPT PEDIAT, ST PETERSBURG, FL 33701 USA
[6] ERASMUS UNIV ROTTERDAM, DEPT CELL BIOL & GENET, 3000 DR ROTTERDAM, NETHERLANDS
[7] INST CHILD HLTH, MOLEC IMMUNOL UNIT, LONDON WC1N 1EH, ENGLAND
[8] RUSH MED SCH, DEPT IMMUNOL, CHICAGO, IL 60612 USA
[9] UNIV BRESCIA, DEPT PEDIAT, I-25123 BRESCIA, ITALY
[10] UNIV WASHINGTON, DEPT PEDIAT, SEATTLE, WA 98195 USA
[11] HARVARD UNIV, SCH MED, DEPT PEDIAT, BOSTON, MA 02115 USA
[12] UNITED MED & DENT SCH, DIV MED & MOLEC GENET, LONDON SE1 0RT, ENGLAND
[13] ROYAL FREE HOSP, SCH MED, DEPT CLIN IMMUNOL, LONDON NW3 2PF, ENGLAND
[14] WILHEMINA KINDERZIEKENHUIS, 3501 CA UTRECHT, NETHERLANDS
[15] KAROLINSKA INST, NOVUM, DEPT CLIN IMMUNOL, S-14157 HUDDINGE, SWEDEN
[16] KAROLINSKA INST, NOVUM, CTR BIOTECHNOL, S-14157 HUDDINGE, SWEDEN