1. Department of Orthodontics and Pediatric Odontology.
2. Craniofacial Unit. All are at the Craniofacial Unit, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
3. Faculty of Medicine, University of Barcelona, Barcelona, Spain.
4. Department of Anesthesiology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
5. Faculty of Dentistry, University of Barcelona, Barcelona, Spain.