Institution: | (1) Max-Planck-Institut für Biologie, Abteilung Immungenetik, Corrensstraße 42, 7400 Tübingen 1, Germany;(2) Present address: Department of Physiology, Faculty of Medicine, University of Zagreb, Zagreb, 3 Salata, Yugoslavia;(3) Present address: Basel Institute for Immunology, Grenzacherstraße 487, CH-4005 Basel 5, Switzerland |