title: Bias in estimates of seat belt effectiveness.
authors.affiliation: nanlee@direcway.com
authors.forename: L S
authors.initials: LS
authors.lastname: Robertson
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control*; D015982:Bias; D006801:Humans; D012107:Research Design / Q000592:standards; D012622:Seat Belts / Q000592:standards* / Q000706:statistics & numerical data