title: Letters to the editor: football helmet design and concussion.
authors: CEO, PanMedix, Inc. New York, NY; and 
authors: Don
authors: D
authors: Comrie
authors: Sean J
authors: SJ
authors: Morey
mesh_terms: D001265:Athletic Injuries / Q000517:prevention & control*; D001924:Brain Concussion / Q000517:prevention & control*; D005538:Football / Q000293:injuries*; D006260:Head Protective Devices; D006801:Humans; D008297:Male