Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleGastrointestinal Blood Loss in Runners.PublicationAnnals of Internal Medicine, 1984, Vol 101, Issue 6, p875ISSN0003-4819Publication typeArticleDOI10.7326/0003-4819-101-6-875_1