[On the problem of diet in repeated examinations of the feces for occult blood in peptic ulcer].
D004032:Diet; D005243:Feces; D006801:Humans; D008551:Melena; D009780:Occult Blood; D010437:Peptic Ulcer; D010438:Peptic Ulcer Hemorrhage
DIET; MELENA; PEPTIC ULCER HEMORRHAGE