Amke Caliebe1, Michael Krawczak2, Manfred Kayser3. 1. Institute of Medical Informatics and Statistics, Kiel University, Brunswiker Strasse 10, 24105 Kiel, Germany. Electronic address: caliebe@medinfo.uni-kiel.de. 2. Institute of Medical Informatics and Statistics, Kiel University, Brunswiker Strasse 10, 24105 Kiel, Germany. Electronic address: krawczak@medinfo.uni-kiel.de. 3. Department of Genetic Identification, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, The Netherlands. Electronic address: m.kayser@erasmusmc.nl.