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February 16, 2000

Brain Injury in Amateur Soccer Players

Author Affiliations

Phil B.FontanarosaMD, Deputy EditorIndividualAuthorStephen J.LurieMD, PhD, Fishbein FellowIndividualAuthor

JAMA. 2000;283(7):882-883. doi:10.1001/jama.283.7.882

To the Editor: The recent article by Dr Matser and colleagues1 on neuropsychological impairment among amateur soccer players has been interpreted in some media reports as demonstrating that "heading" the ball may lead to brain damage. While this conclusion does not seem to have been suggested by the authors, we have 3 additional questions about the internal and external validity of this study.

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