title: Orthodontic profiles: Albert H. Ketcham.
authors.forename: George H
authors.initials: GH
authors.lastname: Siersma
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009970:Orthodontics / Q000266:history*; D013044:Specialty Boards / Q000266:history; D014481:United States