A "Case" for the right "Angle".
Boston University, School of Graduate Dentistry.
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Bernstein
D049672:History, 19th Century; D049673:History, 20th Century; D009971:Orthodontics, Corrective / Q000266:history* / Q000379:methods; D010685:Philosophy, Dental / Q000266:history*; D014081:Tooth Extraction / Q000266:history; D014481:United States