[Case of Osler's disease with severe anemia due to gastrointestinal hemorrhage].
D000740:Anemia / Q000209:etiology*; D006471:Gastrointestinal Hemorrhage / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000150:complications*