1. Department of Plastic and Aesthetic Surgery, Burn Surgery, Klinikum Leverkusen, Germany
2. Department of Dermatology, Venerology and Allergology, Kantonsspital St. Gallen
3. Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital of Basel, Switzerl
4. Department of Plastic, Aesthetic, Hand, and Reconstructive Surgery, Hannover Medical School, Germany