[1] GLAXO WELLCOME RES & DEV LTD, GENEVA BIOMED RES INST, PLAN LES OUATES, SWITZERLAND
[2] UNIV OSLO, RIKSHOSP, N-0027 OSLO, NORWAY
[3] HOP NORD, GRENOBLE, FRANCE
[4] UNIV NANCY 1, F-54013 NANCY, FRANCE
[5] NEWCASTLE GEN HOSP, NEWCASTLE UPON TYNE NE4 6BE, TYNE & WEAR, ENGLAND
[6] JOHN RADCLIFFE HOSP, DEPT CLIN IMMUNOL, OXFORD OX3 9DU, ENGLAND
[7] UNIV PADUA, DEPT PEDIAT, PADUA, ITALY
[8] ROYAL FREE HOSP, MRC, IMMUNODEFICIENCY CLIN, LONDON NW3 2QG, ENGLAND
[9] HOP NECKER ENFANTS MALAD, INSERM, U132, F-75743 PARIS, FRANCE
[10] IMMUNOL UNIT, BARCELONA, SPAIN
[11] UNIV HAIFA, DEPT PEDIAT, IL-31999 HAIFA, ISRAEL
[12] EAST HOSP, DEPT PEDIAT, GOTHENBURG, SWEDEN
[13] INST IMMUNOL, MOSCOW, RUSSIA
[14] KAROLINSKA INST, DEPT BIOSCI, HUDDINGE, SWEDEN
[15] INST CHILD HLTH, LONDON, ENGLAND
[16] DEPT IMMUNOL & HISTOCOMPATIBIL, ATHENS, GREECE
[17] UNIV HELSINKI, CHILDRENS HOSP, HELSINKI, FINLAND
[18] ROBERT KOCH INST, D-1000 BERLIN, GERMANY
[19] SOROKA MED CTR, IL-84101 BEER SHEVA, ISRAEL
[20] SON DURETA HOSP, SERV IMMUNOL, PALMA DE MALLORCA, SPAIN
[21] UNIV PAVIA, DEPT PEDIAT, I-27100 PAVIA, ITALY
[22] IRCCS, DIV PEDIAT, SAN GIOVANNI ROTONDO, ITALY
[23] RES INST HEMATOL, MOSCOW, RUSSIA
[24] ANKARA UNIV, DEPT PEDIAT, TR-06100 ANKARA, TURKEY
[25] BIRMINGHAM HEARTLANDS HOSP, DEPT IMMUNOL, BIRMINGHAM, W MIDLANDS, ENGLAND
[26] UNIV TURIN, DEPT PEDIAT, TURIN, ITALY
[27] CNR, IST TECNOL BIOMED AVANZATE, I-20131 MILAN, ITALY
[28] UNIV HELSINKI, DEPT BIOSCI, FIN-00014 HELSINKI, FINLAND
[29] LEIDEN UNIV, DEPT PEDIAT, LEIDEN, NETHERLANDS
[30] WILHELMINA CHILDRENS HOSP, UTRECHT, NETHERLANDS