1. Department of Plastic Surgery, Sahlgrenska Universitetssjukhuset, Göteborg, Sweden;
2. Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden;
3. Department of Plastic Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden;
4. Department of Plastic Surgery, Institute of Clinical Sciences, Göteborg, Sweden;
5. Department of Plastic Surgery, Sahlgrenska Akademin, Gothenburg, Sweden