[1] TOKYO MED & DENT UNIV, DEPT PEDIAT, TOKYO 113, JAPAN
[2] GLAXO WELLCOME RES & DEV LTD, GENEVA BIOMED RES INST, CH-1228 PLAN LES OUATES, SWITZERLAND
[3] HOP NECKER ENFANTS MALAD, INSERM, U132, F-75015 PARIS 15, FRANCE
[4] CSI UNIV, IMMUNOL UNIT, E-08035 BARCELONA, SPAIN
[5] GOTHENBURG UNIV, DEPT PEDIAT, S-41685 GOTHENBURG, SWEDEN
[6] UNIV ULM, MOL BIOL SECT, D-89075 ULM, GERMANY
[7] UNIV ZURICH, CHILDRENS HOSP, DIV HEMATOL IMMUNOL, CH-8032 ZURICH, SWITZERLAND
[8] GREAT ORMOND ST HOSP CHILDREN, DEPT IMMUNOL, LONDON WC1 N33H, ENGLAND
[9] INST CHILD HLTH, MOL IMMUNOL UNIT, LONDON WD1 N1EM, ENGLAND
[10] UNIV MUNICH, DEPT PEDIAT GENET, D-80336 MUNICH, GERMANY
[11] UNIV BRESCIA, DEPT PEDIAT, I-25123 BRESCIA, ITALY
[12] UNIV MUNICH, CHILDRENS HOSP, DIV PEDIAT IMMUNOL, D-80337 MUNICH, GERMANY
[13] UNIV WASHINGTON, DEPT PEDIAT, SEATTLE, WA 98195 USA