title: Safety in numbers? A new dimension to the bicycle helmet controversy.
authors.forename: C
authors.initials: C
authors.lastname: Komanoff
mesh_terms: D001642:Bicycling / Q000293:injuries*; D006259:Craniocerebral Trauma / Q000453:epidemiology* / Q000517:prevention & control; D006260:Head Protective Devices; D006801:Humans; D018570:Risk Assessment