Institution: | (1) Max-Planck-Innstitut für Biologie, Abteilung Immunogenetik, Corrensstr. 42, D-7400 Tübingen, West Germany;(2) Department of Microbiology and Immunology, University of Miami School of Medicine, 33101 Miami, FL, USA;(3) Department of Pathology, University of Pittsburgh School of Medicine, 15261 Pittsburgh, PA, USA |