A literature analysis in family medicine and general practice. 1981.
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D001319:Authorship; D016009:Chi-Square Distribution; D003625:Data Collection; D005194:Family Practice / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history* / Q000706:statistics & numerical data; D013223:Statistics as Topic