title: The uni experience: history tells it all.
authors.affiliation: University of Iowa, Iowa City, Iowa 52244, USA.
authors.forename: John J
authors.initials: JJ
authors.lastname: Callaghan
authors.forename: Michael R
authors.initials: MR
authors.lastname: O'Rourke
authors.forename: Richard C
authors.initials: RC
authors.lastname: Johnston
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D011474:Prosthesis Design; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome