1. Division of Anaesthesiology, Department of Anaesthesiology Intensive Care and Pain Medicine, Helsinki University Hospital and University of Helsinki, Haartmaninkatu 4, P.O. Box 340, 00029 HUS Helsinki, Finland; Research Program in Systems Oncology, Faculty of Medicine,University of Helsinki, Helsinki, Finland
2. Department of Otorhinolaryngology – Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
3. Patrik Lassus Department of Plastic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
4. Tommy Wilkman Department of Plastic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland Department of Oral and Maxillofacial Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
5. HUS Diagnostic Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
6. Department of Otorhinolaryngology – Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland