1. Department of Oral Medicine and Department of Head and Neck and Oral Pathology, Guy's and St Thomas' NHS Foundation Trust. London
2. Department of Head and Neck Surgical Oncology, Guy's and St Thomas' NHS Foundation Trust, London
3. Department of Head and Neck and Oral Pathology, Guy's and St Thomas' NHS Foundation Trust, London
4. Department of Oral Medicine, Guy's and St Thomas' NHS Foundation Trust and Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London