title: Vitamin D deficiency after vagotomy.
mesh_terms: D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D014628:Vagotomy / Q000009:adverse effects*; D014629:Vagotomy, Proximal Gastric / Q000009:adverse effects; D014808:Vitamin D Deficiency / Q000209:etiology*