American Board of Orthodontics--past, present, and future.
D002568:Certification / Q000266:history / Q000639:trends; D005544:Forecasting; D049673:History, 20th Century; D006801:Humans; D009970:Orthodontics / Q000266:history / Q000639:trends*; D013044:Specialty Boards / Q000266:history / Q000639:trends*; D014481:United States