title: Do enforced bicycle helmet laws improve public health? Evidence is conflicting.
authors.forename: Tony
authors.initials: T
authors.lastname: Raven
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D001642:Bicycling / Q000331:legislation & jurisprudence*; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D006260:Head Protective Devices / Q000706:statistics & numerical data*; D006801:Humans