1. Institute of Dentistry, University of Turku, 20520 Turku, Finland ; Department of Diagnostic Imaging, Turku University Hospital, 20520 Turku, Finland
2. Departments of Forensic Medicine, University of Oulu, BOX 8000, FI-90014 University of Oulu, Finland
3. Department of Dentistry, University of Oulu, BOX 8000, FI-90014 University of Oulu, Finland
4. Department of Archeology, University of Oulu, BOX 8000, FI-90014 University of Oulu, Finland