Affiliation: | a Evangelismos General Hospital, University of Athens, Department of Oral and Maxillofacial Surgery, 41-44 Ipsilantou St., 106 76 Athens, Greece b Medical University of Vienna (MUW), Department of Oral and Cranio-Maxillofacial Surgery, Waehringer Guertel 18-20, A-1090 Vienna, Austria c Oral and Maxillofacial Surgery, Oral and Maxillofacial Department, St. James Institute of Oncology and Leeds Dental Institute, Leeds LS2 9LU, United Kingdom |