title: [Hazardous--but healthy. New leisure activities and sports result in increased number of new and more severe injuries].
authors: Oslo ortopediske universitetsklinikk.
authors: L
authors: L
authors: Engebretsen
authors: R
authors: R
authors: Bahr
mesh_terms: D001265:Athletic Injuries / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D009664:Norway / Q000453:epidemiology; D012307:Risk Factors