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<http://www.providencejournal.com/apps/pbcsi.dll/bilde?Site=PJ&amp;Date=20140417&amp;Category=LIFESTYLE&amp;ArtNo=304179911&amp;Ref=AR>
<http://www.providencejournal.com/features/lifestyle/health-fitness/20140417-study-finds-too-much-running.ece>