title: Football concussion rates across school levels.
authors.affiliation: University of Washington, Seattle, Washington.
authors.forename: Kimberly G
authors.initials: KG
authors.lastname: Harmon
mesh_terms: D001265:Athletic Injuries / Q000453:epidemiology*; D001924:Brain Concussion / Q000453:epidemiology*; D005538:Football / Q000293:injuries*; D006801:Humans; D008297:Male