title: Motorcycle helmet use, incidence of head injury, and cost of hospitalization.
authors.forename: C
authors.initials: C
authors.lastname: May
authors.forename: D
authors.initials: D
authors.lastname: Morabito
mesh_terms: D015998:Abbreviated Injury Scale; D000293:Adolescent; D000328:Adult; D006259:Craniocerebral Trauma / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006260:Head Protective Devices; D006760:Hospitalization / Q000191:economics*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009049:Motorcycles; D011482:Protective Devices; D012495:San Francisco; D014193:Trauma Centers