1 Department of Oral and Maxillofacial Surgery, University Hospital of Badajoz, Avenida de Elvas s/n 06080 Badajoz, Spain; Private Practice, Hospital Quirónsalud Clideba, Calle Eladio Salinero de los Santos 6, 06011 Badajoz, Spain. Electronic address: [email protected].
2 Department of Oral and Maxillofacial Surgery, University Hospital Clínico San Carlos, Calle del Profesor Martín Lagos, 28040 Madrid, Spain.