title: Reflections and visions: 50 years of presidential addresses.
authors.forename: Shelley
authors.initials: S
authors.lastname: McKellar
authors.forename: Mark
authors.initials: M
authors.lastname: Kurusz
mesh_terms: D001187:Artificial Organs / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D012955:Societies, Medical / Q000266:history*; D014481:United States