Alpine ski injuries: changes through the years.
D001265:Athletic Injuries / Q000453:epidemiology* / Q000209:etiology; D004868:Equipment Failure; D006801:Humans; D007869:Leg Injuries / Q000453:epidemiology / Q000209:etiology; D011336:Probability; D012865:Skiing; D012914:Snow; D013997:Time Factors