1. Department of Otorhinolaryngology - Head and Neck Surgery; University of Helsinki and Helsinki University Hospital; Helsinki Finland
2. School of Dentistry; University of California; Los Angeles, Los Angeles California
3. Department of Pathology, HUSLAB; University of Helsinki and Helsinki University Hospital; Helsinki Finland
4. Department of Radiology, HUS Medical Imaging Center; University of Helsinki and Helsinki University Hospital; Helsinki Finland
5. Department of Radiation Oncology, HUS Cancer Center; University of Helsinki and Helsinki University Hospital; Helsinki Finland