title: Difficulties in estimating air bag effectiveness.
authors.affiliation: Harborview Injury Prevention and Research Center, Seattle, WA 98104-2499, USA.
authors.forename: P
authors.initials: P
authors.lastname: Cummings
mesh_terms: D000063:Accidents, Traffic / Q000401:mortality*; D000328:Adult; D000368:Aged; D017278:Air Bags; D015982:Bias; D006801:Humans; D016015:Logistic Models; D016555:Matched-Pair Analysis; D016017:Odds Ratio