1. Institute for Health- and Nursing Science, Martin Luther University Halle-Wittenberg, Halle, Germany
2. Profile Centre of Health Sciences Halle, Martin Luther University Halle-Wittenberg, Halle, Germany
3. Department of Dermatology, University Medical Centre, Johannes Gutenberg University, Mainz, Germany
4. Department of Dermatology, Dessau Medical Centre, Brandenburg Medical School Theodor Fontane, Dessau, Germany
5. Interdisciplinary Centre for Clinical Trials, University Medical Centre, Johannes Gutenberg University, Mainz, Germany
6. German Society for Wound Healing and Wound Treatment (DGfW), Giessen, Germany
7. School of Business and Health, Baden-Wuerttemberg Cooperative State University, Stuttgart, Germany
8. Institute of Medical Epidemiology, Biostatistics, and Informatics, Profile Area Clinical Studies & Biostatistics, Martin-Luther-University Halle-Wittenberg, Halle, Germany
9. Department of Dermatology, Venereology, and Allergology, St Josef Hospital, Ruhr-University Bochum, Bochum, Germany
10. Dermatology Outpatient Office Dr. Uwe Kirschner, Mainz, Germany
11. Department of Dermatologic Surgery and Dermatology, Artemed Fachklinik München, Munich, Germany
12. Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
13. Department of Dermatology, Medical Center Klinikum Darmstadt, Teaching Hospital Goethe-University Frankfurt, Darmstadt, Germany