1. Department of Orthodontics and Oral Biology, Radboud University Nijmegen Medical Center, the Netherlands.
2. Academic Center of Dentistry Amsterdam, and Former Head of the Department of Orthodontics, Erasmus MC University Medical Center Rotterdam, the Netherlands.
3. Department of Preventive and Curative Dentistry, Radboud University Nijmegen Medical Center, the Netherlands.
4. Department of Plastic and Reconstructive Surgery at the Radboud University Nijmegen Medical Center, the Netherlands.
5. Department of Plastic Surgery, VU University Medical Center, Amsterdam, the Netherlands and member of the cleft lip and palate team of the Academic Center of Dentistry in Amsterdam, the Netherlands.
6. Department of Plastic and Reconstructive Surgery, Erasmus MC University Medical Center Rotterdam, and member of the cleft lip and palate team of Erasmus MC University Medical Center Rotterdam in Rotterdam, the Netherlands.
7. Department of Orthodontics and Oral Biology, and Head of the Cleft Palate Craniofacial Unit of the Radboud University Nijmegen Medical Center, the Netherlands.