1. Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
2. Centre for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen 72070, Germany
3. Department of Medical Genetics, University Hospital Tübingen, Calwerstrasse 7, Tübingen 72076, Germany