1. Institut für Medizinische Biometrie und Statistik; Universität zu Lübeck, Universitätsklinikum Schleswig-Holstein; Campus Lübeck Lübeck Germany
2. Center for Clinical Trials; University of Lübeck; Lübeck Germany
3. INSERM; UMR1043-CPTP, CHU Purpan; Toulouse France
4. University of Toulouse III - Paul Sabatier; Toulouse France
5. Department of Genetics; Texas Biomedical Research Institute; San Antonio Texas United States of America
6. Department of Dairy Science; University of Wisconsin; Madison Wisconsin United States of America