title: Serum gastrin levels.
authors: I
authors: I
authors: Beales
mesh_terms: D004381:Duodenal Ulcer / Q000097:blood / Q000382:microbiology; D005755:Gastrins / Q000097:blood*; D005756:Gastritis / Q000097:blood / Q000382:microbiology*; D016481:Helicobacter Infections / Q000097:blood*; D016480:Helicobacter pylori; D006801:Humans; D010295:Parietal Cells, Gastric / Q000502:physiology; D013004:Somatostatin / Q000032:analysis
chemical_list: D005755:Gastrins; D013004:Somatostatin