1. Division of General Dermatology; Graz University Hospital; Austria
2. Department of Dermatology; HELIOS Klinikum; Krefeld Germany
3. Department of Radiotherapy; University Hospital Halle (Saale); Germany
4. Department of Nuclear Medicine; University Hospital Ulm; Germany
5. Department of Internal Medicine; University Hospital Essen; Germany
6. Department of Plastic Surgery; Hornheide Clinic; Münster Germany
7. Department of Oral and Maxillofacial Surgery; University of Frankfurt Hospital; Germany
8. Department of Dermatology; Mainz University Hospital; Germany