title: A complementary strategy to reduce tractor overturn fatalities: sell more new tractors and retire the old ones.
authors.forename: Murray D
authors.initials: MD
authors.lastname: Madsen
mesh_terms: D000062:Accidents, Occupational / Q000401:mortality* / Q000517:prevention & control*; D000383:Agriculture / Q000295:instrumentation*; D006801:Humans; D011482:Protective Devices; D014481:United States / Q000453:epidemiology