1. Department of Plastic, Hand, and Reconstructive Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
2. Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
3. Institute of Nutritional Medicine, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538 Lübeck, Germany
4. Department of Medicine I, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538 Lübeck, Germany
5. Institute of Chemistry and Metabolomics, University of Lübeck, 23562 Lübeck, Germany
6. Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), 23562 Lübeck, Germany