title: Content usage and the most frequently read articles by issue in 2012.
authors: Phillip
authors: P
authors: Lupo
authors: Anne Victoria
authors: AV
authors: Neale
authors: Marjorie A
authors: MA
authors: Bowman
mesh_terms: D015706:Bibliometrics; D005194:Family Practice / Q000706:statistics & numerical data*; D006801:Humans; D016247:Information Storage and Retrieval / Q000706:statistics & numerical data*; D008374:Manuscripts, Medical as Topic; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D014481:United States