title: Enteroscopy for unexplained iron-deficiency anemia: take enough biopsies.
authors.forename: J D
authors.initials: JD
authors.lastname: van Bergeijkl
authors.forename: P
authors.initials: P
authors.lastname: Fockens
authors.forename: C J
authors.initials: CJ
authors.lastname: Mulder
authors.forename: G N
authors.initials: GN
authors.lastname: Tytgat
mesh_terms: D000747:Anemia, Hypochromic / Q000209:etiology*; D001706:Biopsy; D002446:Celiac Disease / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004386:Duodenum / Q000473:pathology; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D006801:Humans; D007583:Jejunum / Q000473:pathology