title: "It pays": John H. Patterson and industrial recreation at the National Cash Register Company.
authors.forename: J R
authors.initials: JR
authors.lastname: Schleppi
mesh_terms: D049711:History, Modern 1601-; D006920:Hygiene / Q000266:history*; D009787:Occupational Medicine / Q000266:history*; D014481:United States