title: Helmets for motor cyclists: lower fatal head injury rate but more crashes mean more study.
authors.forename: C
authors.initials: C
authors.lastname: Desoer
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D006259:Craniocerebral Trauma / Q000401:mortality*; D006260:Head Protective Devices; D006801:Humans