title: [Hazardous--but good for health].
authors.forename: L
authors.initials: L
authors.lastname: Engebretsen
authors.forename: R
authors.initials: R
authors.lastname: Bahr
mesh_terms: D001265:Athletic Injuries / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D007899:Leisure Activities; D011322:Primary Prevention; D012307:Risk Factors; D013177:Sports