title: What has changed?
authors.forename: A N
authors.initials: AN
authors.lastname: Haffner
mesh_terms: D004501:Education, Medical / Q000639:trends; D049673:History, 20th Century; D008004:Licensure; D009907:Optometry / Q000193:education / Q000266:history*; D011361:Professional Competence; D012574:Schools / Q000266:history; D014481:United States