title: A 12-year-old girl with syncope.
authors.affiliation: Feinberg School of Medicine, Northwestern University, and Diagnostic and Consultation Service, Division of General Academic Pediatrics, Children's Memorial Hospital, Chicago, IL, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Listernick
mesh_terms: D018798:Anemia, Iron-Deficiency / Q000175:diagnosis*; D002648:Child; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis*; D007443:Intussusception / Q000209:etiology; D007579:Jejunal Diseases / Q000209:etiology; D013575:Syncope / Q000209:etiology*; D014839:Vomiting / Q000209:etiology