title: Circulation's first 50 years: January 1950 to January 2000.
authors.forename: J T
authors.initials: JT
authors.lastname: Willerson
mesh_terms: D000573:American Hospital Association; D002319:Cardiovascular System; D049673:History, 20th Century; D010506:Periodicals as Topic / Q000266:history* / Q000639:trends; D014481:United States