title: Bias in estimates of seat belt effectiveness.
authors.forename: T D
authors.initials: TD
authors.lastname: Koepsell
authors.forename: F P
authors.initials: FP
authors.lastname: Rivara
authors.forename: D C
authors.initials: DC
authors.lastname: Grossman
authors.forename: C
authors.initials: C
authors.lastname: Mock
mesh_terms: D015982:Bias; D004869:Equipment Safety / Q000592:standards; D012622:Seat Belts / Q000706:statistics & numerical data*