1. U.O.C. Odontostomatologia, A.O.R.N. "A. Cardarelli" Naples Italy
2. Maxillofacial and ENT surgery Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" Naples Italy
3. Australian Centre for Oral Oncology Research & Education Pert WA Australia
4. Oral, Maxillofacial and Dental Surgery Fiona Stanley Hospital Murdoch WA Australia
5. The Oral Medicine Clinic Hollywood Private Hospital Nedlands WA Australia
6. Head and Neck Pathology Australian Clinical Labs Subiaco WA Australia