1990 JCO study of orthodontic diagnosis and treatment procedures. 3. More breakdowns of selected variables.
Gottlieb
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Nelson
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AH
Vogels
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D005115:Extraoral Traction Appliances / Q000706:statistics & numerical data; D006801:Humans; D007182:Income; D009967:Orthodontic Appliances / Q000706:statistics & numerical data*; D016910:Orthodontic Brackets / Q000706:statistics & numerical data; D009969:Orthodontic Wires / Q000706:statistics & numerical data; D009970:Orthodontics / Q000706:statistics & numerical data*; D012959:Socioeconomic Factors; D014481:United States