Affiliation: | (1) Lehrstuhl für Biotechnologie, Universität Würzburg, Röntgenring 11, D-8700 Würzburg, Federal Republic of Germany;(2) Dr. Karl Thomae, Abteilung-Biochemie, Postfach 1755, D-7950 Biberach, Federal Republic of Germany;(3) Department of Pathology, University of Chicago, 55841 South Maryland Avenue, 60637 Chicago, IL, USA |