Tahwinder Upile1,2,3
, Waseem Jerjes1,3
, Panagiotis Kafas4
, Sandeep U Singh1
, Jaspal Mahil1
, Ann Sandison5
, Colin Hopper1,3
and Holger Sudhoff6 
1
Head & Neck Centre, University College London Hospital, London, UK
2
Head and Neck Department, Charing Cross Hospital, London, UK
3
Department of Surgery, University College London Medical School, London, UK
4
Department of Oral Surgery and Radiology, School of Dentistry, Aristotle University, Thessaloniki, Greece
5
Department of Histopathology, Imperial College & Charing Cross Hospital, London, UK
6
Department of Otolaryngology, Bielefeld University, Bielefeld, Germany