Affiliation: | 1. Department of Oral & Maxillofacial Surgery, Leeds Dental Institute, Clarendon Way, Leeds LS2 9LU, UK;2. Department of Oral & Maxillofacial Surgery, University Hospital Giessen & Marburg, Marburg, Germany;3. Department of Craniomaxillofacial & Oral Surgery, Medical University Clinic Innsbruck, Austria |