Yan, S L Hookworm infestation of the small intestine: an unusual cause of obscure gastrointestinal bleeding. [electronic resource] - Endoscopy Feb 2007 - E162-3 p. digital Publication Type: Case Reports; Journal Article ISSN: 1438-8812 Standard No.: 10.1055/s-2007-966545 doi Subjects--Topical Terms: Ancylostomatoidea--anatomy & histologyAnemia, Iron-Deficiency--etiologyAnimalsDiagnosis, DifferentialDuodenal Diseases--diagnosisEndoscopy, Digestive SystemGastrointestinal Hemorrhage--etiologyHookworm Infections--diagnosisHumansIntestinal Mucosa--parasitologyJejunal Diseases--diagnosisMaleMiddle Aged