title: [Big gastrin (G34) and little gastrin (G17) in patients with duodenal ulcer].
mesh_terms: D000328:Adult; D004381:Duodenal Ulcer / Q000097:blood*; D005755:Gastrins / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D008970:Molecular Weight; D011863:Radioimmunoassay
chemical_list: D005755:Gastrins