title: 90th anniversary of the Mayo medical records system.
authors.affiliation: Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: C W
authors.initials: CW
authors.lastname: Nelson
mesh_terms: D049673:History, 20th Century; D006770:Hospitals, Group Practice / Q000266:history*; D006801:Humans; D008499:Medical Records; D014481:United States