1. Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
2. Institute of Experimental and Clinical Pharmacology and Toxicology, University of Erlangen-Nürnberg, 91054 Erlangen, Germany
3. Core Facility Metabolomics/Mass Spectrometry, Philipps University Marburg, 35043 Marburg, Germany
4. Institute of Clinical Pharmacology, Faculty of Medicine, Goethe University Frankfurt, 60590 Frankfurt, Germany
5. Department of Dermatology, University Hospital of Regensburg, 93053 Regensburg, Germany
6. Comprehensive Cancer Center (CCC) Erlangen-EMN, 91054 Erlangen, Germany