Occurrence of argentaffin cells in the stomach and duodenum in cases of pernicious anemia.
D000740:Anemia; D000752:Anemia, Pernicious / Q000502:physiology*; D004386:Duodenum / Q000473:pathology*; D004759:Enterochromaffin Cells; D013270:Stomach / Q000473:pathology*; D064028:Tracheophyta
ANEMIA, PERNICIOUS/physiology; DUODENUM/pathology; STOMACH/pathology