1. Oral and Maxillofacial Surgery Department, University Hospital Badajoz, 06080 Badajoz, Spain
2. Oral and Maxillofacial Surgery Department, La Princesa University Hospital, 28006 Madrid, Spain
3. Radiology Department, Infanta Leonor Hospital, 28032 Madrid, Spain
4. Oral and Maxillofacial Surgery Department, University Hospital A Coruña, 15008 A Coruña, Spain
5. Oral and Maxillofacial Surgery Department, University Hospital Virgen del Rocío, 41013 Sevilla, Spain
6. Oral and Maxillofacial Surgery Department, Hospital Clínico San Carlos, 28040 Madrid, Spain
7. Oral and Maxillofacial Surgery Department, La Paz University Hospital, 28046 Madrid, Spain
8. Oral and Maxillofacial Surgery Department, University Hospital Virgen de las Nieves, 18014 Granada, Spain
9. Oral and Maxillofacial Surgery Department, University Hospital Reina Sofía, 30003 Murcia, Spain
10. Oral and Maxillofacial Surgery Department, Hospital Povisa, 36211 Vigo, Spain
11. Oral and Maxillofacial Surgery Department, University Hospital Río Hortega, 47012 Valladolid, Spain
12. Oral and Maxillofacial Surgery Department, University Hospital 12 de Octubre, 28041 Madrid, Spain
13. GBCOM Dental and Maxillofacial Clinic, 07014 Palma de Mallorca, Spain
14. Oral and Maxillofacial Surgery Department, University Hospital Son Espases, 07120 Palma de Mallorca, Spain
15. Oral and Maxillofacial Surgery Department, University Hospital Santa Lucía, 30202 Cartagena, Spain
16. Oral and Maxillofacial Surgery Department, Hospital Sant Joan de Déu, 08950 Barcelona, Spain
17. Oral and Maxillofacial Surgery Department, University Hospital Vall d’Hebron, 08035 Barcelona, Spain
18. Oral and Maxillofacial Surgery Department, Hospital Reina Sofía, 14004 Córdoba, Spain