Acknowledgments
We are very grateful to Liliana Davkova, Aylin Benzer and Daniela Kraft for excellent technical support. In addition, we are thankful to Ayele T. Tsedeke and Liliana Davkova for the support in taking pictures using a confocal microscope. For the inclusion of the patients in the RAD-ON02 study at the state-certified health resort Bad Steben (Germany) we thank Dr. med. Gerhard Klein and Dr. Ina Becker for the support in drawing blood from patients. We would like to thank Dipl. -Stat. Frederic Klein for his support in the statistical analyses of the carry-over effects. We acknowledge the support of BMBF for funding and GSI for covering publication costs.