Department of Medical Biometry, Informatics and Epidemiology, University of Bonn, Sigmund-Freud-Str. 25, Bonn, D-53127, Germany. weinhold@imbie.uni-bonn.de.|Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, Neuherber, D-85764, Germany.|Department of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Hufelandstr. 55, Essen, D-45122, Germany.|Human Genomics Research Group, Department of Biomedicine, University Hospital Basel, Hebelstr. 20, Basel, CH-4031, Switzerland.|Department of Medical Biometry, Informatics and Epidemiology, University of Bonn, Sigmund-Freud-Str. 25, Bonn, D-53127, Germany.