title: Atrophic gastritis classification.
mesh_terms: D000328:Adult; D000368:Aged; D000906:Antibodies / Q000032:analysis; D005260:Female; D005755:Gastrins / Q000097:blood; D005756:Gastritis / Q000145:classification*; D005757:Gastritis, Atrophic / Q000145:classification* / Q000276:immunology / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged
chemical_list: D000906:Antibodies; D005755:Gastrins