1. Division of Maxillofacial Surgery, Department of Surgical Science University of Turin Turin Italy
2. Department of Oral and Maxillofacial Surgery University Hospital of Bellvitge Barcelona Spain
3. Department of Oral and Maxillofacial Surgery Paracelsus Medical University Salzburg Austria
4. Department of Oral and Maxillofacial Surgery University of Dundee Dundee UK
5. Department of Maxillofacial Surgery University Hospital Dubrava Zagreb Croatia
6. Clinic for ENT and OMS University Clinical Hospital Mostar Bosnia and Herzegovina
7. Department of Oral and Maxillofacial Surgery Hippocratio General Hospital Athens Greece
8. Clinic of Maxillofacial Surgery, School of Dental Medicine University of Belgrade Belgrade Serbia
9. Department of Maxillofacial and Oral Surgery University Medical Centre Ljubljana Slovenia
10. Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine University of Geneva & University Hospitals of Geneva Geneva Switzerland
11. Department of Oral and Maxillofacial Surgery Dicle University Diyarbakir Turkey
12. Department Oral and Maxillofacial Surgery, Faculty of Medicine Catholic University of Leuven Leuven Belgium