1. Department of Physics University of Helsinki Helsinki Finland
2. Department of Oral and Maxillofacial Surgery/Oral Pathology VU University Medical Center Amsterdam The Netherlands
3. University of North CarolinaAdams School of Dentistry Chapel Hill NC USA
4. International Docrates Cancer Center Helsinki Finland
5. Section of Oral Maxillofacial Radiology Department of Clinical Dentistry Faculty of Medicine and Dentistry University of Bergen Bergen Norway
6. Department of Oral Maxillofacial Surgery University Medical Center Hamburg‐Eppendorf Hamburg Germany
7. Division of Regenerative Orofacial Medicine Hamburg Germany