1. Department of Maxillofacial Surgical Oncology, “Theagenio” Cancer Hospital, 2 Al. Simeonidi Street, 540 07 Thessaloniki, Greece
2. Laboratory of Histology, Embryology and Anthropology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
3. Craniofacial Unit, Chelsea and Westminster Hospital, London SW109NH, UK