1. Department of Orthodontics, University of Toronto, Toronto, Ontario, Canada
2. Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
3. Division of Orthodontics, Dalhousie University, Halifax, Nova Scotia, Canada
4. Cleft Palate Team, IWK Health Centre, Halifax, Nova Scotia, Canada
5. Division of Orthodontics, Ohio State University, Columbus, OH, USA
6. Craniofacial Centre, Peyton Manning Children’s Hospital at St. Vincent, Indianapolis, IN, USA
7. Albert Einstein Medical Center, Philadelphia, PA, USA
8. Lancaster Cleft Palate Clinic, PA, USA
9. Department of Surgery, Penn State University College of Medicine, Lancaster, PA, USA
10. Oslo Cleft Team, Department of Plastic Surgery, University of Oslo, Oslo, Norway
11. Senior Lecturer in Craniofacial Anomalies, University of Manchester, Manchester, UK
12. Orthodontics and Dentofacial Development, University of Manchester, Manchester, UK. Singer is in private practice, Whitby, ON, Canada. Hathaway is now with Craniofacial and Surgical Orthodontics, Division of Craniofacial Plastic and Reconstructive Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA. Stoutland is in private practice, Philadelphia, PA, USA.