1. Department of Oral Pathology and Oral Radiology, Institute of Dentistry, Faculty of Medicine University of Turku Turku Finland
2. Department of Clinical Oncology Leiden University Medical Center Leiden The Netherlands
3. Department of Obstetrics and Gynecology Turku University Hospital Turku Finland
4. Department of Oral and Maxillofacial Diseases, Clinicum University of Helsinki and Helsinki University Hospital Helsinki Finland
5. Department of Clinical Research Biohit Oyj Helsinki Finland
6. Department of Pathology Turku University Hospital Turku Finland