Chronic gastrointestinal bleeding in Von Willebrand's disease.
D002908:Chronic Disease; D005169:Factor VIII / Q000032:analysis; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014842:von Willebrand Diseases / Q000097:blood / Q000150:complications* / Q000175:diagnosis
D005169:Factor VIII