1. Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, Munich
2. Department of Surgery, Division of Plastic Surgery, Brigham and Women’s Hospital and Harvard Medical School, Boston
3. Department of Surgery, Division of Plastic and Reconstructive Surgery, Yale New Haven Hospital, Yale School of Medicine, New Haven, USA
4. Faculty of Social and Health Care Sciences, University of Applied Sciences Regensburg, Regensburg
5. Department of Plastic Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, People’s Republic of China
6. Department of General and Visceral Surgery, Friedrich-Alexander University Erlangen, Erlangen
7. Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover
8. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
9. Department of Hand, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany