title: Fifty years and counting.
authors.forename: Tracy M
authors.initials: TM
authors.lastname: Walton
mesh_terms: D004219:District of Columbia; D004504:Education, Medical, Undergraduate / Q000191:economics / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D012577:Schools, Medical / Q000266:history*