1. AO Education Institute, AO Foundation, Duebendorf, Switzerland
2. College of Veterinary Medicine/School of Veterinary and Life Sciences, Murdoch University, Murdoch, Australia
3. Department of Oral and Maxillofacial Surgery, Rigshospitalet, University Hospital, Copenhagen, Denmark
4. Maxillofacial Unit, Queen’s Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK