On bended knee. More girls are tearing ligaments in their knees. Here's what they can do to prevent it.
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D000293:Adolescent; D001265:Athletic Injuries / Q000453:epidemiology / Q000517:prevention & control; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000453:epidemiology / Q000517:prevention & control*; D014481:United States / Q000453:epidemiology