1. Research fellow, Department of Oral & Maxillofacial Surgery, The Sahlgrenska Academy, University of Gothenburg, Sweden; resident, The Maxillofacial Unit, Söder Hospital, Stockholm, Sweden.
2. associate professor, Department of Surgical Sciences, Oral & Maxillofacial Surgery, Uppsala University Hospital, Uppsala, Sweden.
3. associate professor, Department of Oral & Maxillofacial Radiology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Sweden.
4. professor, Department of Oral & Maxillofacial Surgery, The Sahlgrenska Academy, University of Gothenburg, Sweden.
5. professor, head, Department of Oral & Maxillofacial Surgery, The Sahlgrenska Academy, University of Gothenburg, Sweden