title: Congenital duodenal stenosis misdiagnosed as iron deficiency anemia for 20 years.
authors.affiliation: Henan Cancer Hospital, Henan Institute of Hematology, Zhengzhou University, Zhengzhou, Henan, China.
authors.forename: Qingsong
authors.initials: Q
authors.lastname: Yin
authors.forename: Xudong
authors.initials: X
authors.lastname: Wei
mesh_terms: D018798:Anemia, Iron-Deficiency / Q000175:diagnosis* / Q000601:surgery; D003951:Diagnostic Errors / Q000639:trends*; D004380:Duodenal Obstruction / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007409:Intestinal Atresia; D008297:Male; D013997:Time Factors; D055815:Young Adult