1. Department of Oral and Maxillofacial Surgery, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
2. Division of Maxillofacial Surgery, Department of Surgery, AZ Sint-Jan Brugge-Oostende AV, Bruges, Belgium
3. Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya (UIC), Barcelona, Spain
4. Maxillofacial Surgery Unit, Swiss Concept Facial Clinic, Valencia, Spain
5. Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain