Acknowledgements
Our gratitude is owed to all patients and donors who contributed to this work.
We thank Elsbeth Sellenies-Huber, Sandra Wagner-Urban, Anja Bertsch and Kevin Löscher (all Department of Dermatology, University Medical Center of the Johannes Gutenberg-Universität, Mainz, Germany) for the blood sample collections, Annette Jamin (Paul-Ehrlich-Institut, Langen, Germany) for technical support and Toni Anusic (Institute of Medical Biometry, Epidemiology and Informatics (IMBEI) of the Johannes Gutenberg-Universität, Mainz, Germany) for statistical guidance.
This work was supported by the German Research Foundation (DFG): STE 791/9-1, TR156/A4/C05-246807620, SFB1009/B11-194468054, SFB1066/B06-213555243 and SFB1450/C06-431460824 (all to KS)