Affiliation: | (1) Division of Immunogenetics, University of Göttingen, Goßlerstrasse 12d, 37073 Göttingen, Germany;(2) Département de Biologie Moléculaire, Université Libre de Bruxelles, Rue des Chevaux, B-1640 Rhode-St-Genèse, Belgium;(3) Department of Genetics, Gothenburg, Box 33031, S-40033 Gothenburg, Sweden |