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A comment on Cardio fitness is a strong, consistent predictor of morbidity and mortality. Parent comment
https://www.eta.co.uk/2011/04/01/safest-bicycle-helmet-has-b...
https://pubmed.ncbi.nlm.nih.gov/17064655/
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https://www.eta.co.uk/2011/04/01/safest-bicycle-helmet-has-b...
https://pubmed.ncbi.nlm.nih.gov/17064655/