title: Bicycle helmets. Subsequences and consequences need to be distinguished.
authors.forename: M J
authors.initials: MJ
authors.lastname: Wardlaw
mesh_terms: D001642:Bicycling / Q000293:injuries*; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D006260:Head Protective Devices / Q000706:statistics & numerical data*; D006801:Humans