1. Division of Plastic, Reconstructive, Aesthetic and Hand Surgery; Department of Surgery; University Hospital of Basel; Basel Switzerland
2. Division of Neuropathology; Institute of Pathology; University Hospital of Basel; Basel Switzerland
3. Plastic and Reconstructive Surgery; Department of Surgery, Oncology and Stomatology; University of Palermo; Palermo Italy
4. Division of Plastic and Reconstructive Surgery; Department of Surgery; Ghent University Hospital; Gent Belgium