title: Helmet-to-helmet contact: avoiding a lifetime penalty by creating a duty to scan active NFL players for chronic traumatic encephalopathy.
authors: a Southern Illinois University.
authors: Thomas A
authors: TA
authors: Drysdale
mesh_terms: D001924:Brain Concussion / Q000150:complications / Q000209:etiology / Q000517:prevention & control; D020208:Brain Injury, Chronic / Q000175:diagnosis* / Q000209:etiology / Q000517:prevention & control*; D005538:Football / Q000293:injuries* / Q000331:legislation & jurisprudence*; D006260:Head Protective Devices; D006801:Humans; D049268:Positron-Emission Tomography; D014481:United States