1. Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School , Hannover , Germany
2. Department of Human Genetics, Hannover Medical School , Hannover , Germany
3. Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital and Harvard Medical School , Boston, Massachusetts , USA
4. Department of Hand, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg , Ludwigshafen , Germany