1. Cleft Palate Centre and University Hospital Aarhus and University of Aarhus, Aarhus, Denmark
2. Cleft Palate and Craniofacial Center, Department of Plastic Surgery, Helsinki University Hospital, Helsinki, Finland
3. Copenhagen Cleft Palate Centre, University Hospital of Copenhagen, Copenhagen, Denmark
4. Department of Dentofacial Orthopaedics, Maxillofacial Unit, University Hospital, Linköping, Linköping, Sweden
5. Stockholm Craniofacial Team, Section of Orthodontics, Division of Orthodontics and Pedodontics, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
6. Department of Orthodontics and Paediatric Dentistry, University of the Western Cape, South Africa
7. Division of Dentistry, University of Manchester, Manchester, UK
8. Oral Health Centre of Expertise/Western Norway, Bergen, Norway
9. Department of Plastic and Reconstructive Surgery, Oslo University Hospital, Rikshospitalet, Norway
10. Clinic of Orthodontics, Gothenburg, Public Dental Service, Region Västra Götaland, Sweden