1. Centre for Clinical and Diagnostic Oral Sciences; Institute of Dentistry; Barts & The London School of Medicine and Dentistry; Queen Mary University of London; England United Kingdom
2. Department of Oral & Maxillofacial Surgery; Barts & The London NHS Trust; London England United Kingdom
3. The Gade Laboratory of Pathology; Department of Clinical Medicine; University of Bergen; and Department of Pathology; Haukeland University Hospital; Bergen Norway
4. Department of Oral Surgery; Haukeland University Hospital; and Institute of Clinical Dentistry; University of Bergen; Bergen Norway
5. Department of Otolaryngology and Head & Neck Surgery; Head and Neck Clinic; Haukeland University Hospital; Bergen Norway