1. Department of Dermatology, University Medical Center Johannes Gutenberg University Mainz Germany
2. University Medicine Ernst Moritz Arndt University Greifswald Germany
3. Institute of Clinical Chemistry and Laboratory Medicine University Medical Center, Johannes Gutenberg University Mainz Germany
4. Institute of Laboratory Medicine and Human Genetics Singen Germany
5. Center for Public Health Genomics University of Virginia Charlottesville Virginia
6. Department of Medical Psychology and Medical Sociology Johannes Gutenberg University Mainz Germany