Institution: | (1) Cambridge University Department of Pathology, Immunology Division, Tennis Court Road, CB2 1QP Cambridge, UK;(2) Department of Pathology, The Royal College of Surgeons of England, 35-43 Lincolns's Inn Fields, WC2A 3PN London, UK;(3) Transplantation Biology Unit, Clinical Research Centre, Watford Rd, HA1 3UJ Harrow, Middlesex, UK;(4) Max Planck Institut für Biologie, Abteilung Immunogenetik, W-7400 Tübingen 1, Federal Republic of Germany |