1. Stockholm Craniofacial Team, Division of Orthodontics, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden;
2. Department of Dentofacial Orthopedics, Maxillofacial Unit, University Hospital, Linköping, Sweden;
3. Cleft Palate and Craniofacial Center, Helsinki University Central Hospital, Helsinki, Finland;
4. Cleft Palate Center, Aarhus, Denmark;
5. Department of Plastic and Reconstructive Surgery, Oslo University Hospital Rikshospitalet, Oslo, Norway;
6. Greater Manchester Cleft Lip and Palate Unit, Royal Manchester Childrens’ Hospital, Manchester, UK;
7. Dental School, University of Manchester, Manchester, UK;
8. Copenhagen Cleft Palate Center, University Hospital of Copenhagen, Copenhagen, Denmark;
9. Oral Health Center of Expertise/Western Norway, Bergen, Norway;
10. Department of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden