1. The Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, United Kingdom
2. Centre d'Immunologie, Parc Scientifique de Luminy, Cedex, France
3. Faculte de Medicine de Creteil, Cedex, France
4. Division of Immunity and Infection, MRC Center for Immune Regulation, Department of Rheumatology, University of Birmingham, Edgbaston, Birmingham, United Kingdom
5. Johns Hopkins Comprehensive Cancer Center, Baltimore, Maryland, USA
6. Department of Microbiology, University of Washington, Seattle, Washington, USA
7. CLB, Department of Experimental Immunohematology, Amsterdam, The Netherlands
8. Laboratory of Molecular Hematology/Division of Molecular Medicine, North Shore University Hospital, Manhasset, New York, USA
9. Kinderklinik, Medizinische Hochschule Hannover, Hannover, Germany
10. Mater Medical Research Institute, Aubigny Place, Mater Hospital, Queensland, Australia
11. Institut für Immunologie der Univ. Heidelberg, Heidelberg, Germany
12. Institute of Molecular Genetics AS CR, Prague, Czechoslovakia
13. Professor of Biochemistry, University of Illinois College of Medicine, Urbana, Illinois, USA
14. German Cancer Research Center, Heidelberg, Germany
15. National Institute of Health, Bethesda, Maryland, USA
16. Director of Biology Celltech R&D Ltd., Cambridge, United Kingdom
17. Institute for Research in Biomedicine, Bellinzona, Switzerland
18. University of Adelaide, Department of Pediatrics, Women's and Children's Hospital, South Australia, Australia