1. Department of Nordic Studies and Linguistics University of Copenhagen Copenhagen Denmark
2. Copenhagen Cleft Palate Centre University Hospital of Copenhagen Copenhagen Denmark
3. Cleft Palate and Craniofacial Center Helsinki University Central Hospital Helsinki Finland
4. Statped Vest Bergen Norway
5. Cleft Palate Centre Aarhus Denmark
6. Department of Speech and Language Disorders Statped sørøst Oslo Norway
7. The Royal Hospital for Sick Children Belfast UK
8. Region Västra Götaland, Department of Otorhinolaryngology Sahlgrenska University Hospital Gothenburg Sweden
9. Institute of Neuroscience and Physiology, Department of Health and Rehabilitation Speech and Language Pathology Unit, Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
10. Division of Speech and Language Pathology Linköping University Linköping Sweden
11. Greater Manchester Cleft Unit Royal Manchester Children's Hospital Manchester UK
12. Copenhagen Business School, Center for Statistics, Copenhagen, Denmark
13. Department of Plastic and Reconstructive Surgery Oslo University Hospital Rikshospitalet Oslo Norway
14. Division of Speech and Language Pathology CLINTEC, Karolinska Institutet Stockholm Sweden
15. Medical Unit Speech and Language Pathology Karolinska University Hospital Stockholm Sweden