1. Department of Maxillofacial Surgery and Orthodontics, University Hospital and a specialist in Orthodontics, Folktandvården, County council, Uppsala, Sweden.
2. Department of Plastic Surgery, University Hospital, Uppsala, Sweden.
3. Department of Plastic and Reconstructive Surgery, University Hospital, Uppsala, Sweden.
4. Department of Maxillofacial Surgery and Orthodontics, University Hospital, Uppsala, Sweden.