title: Pepsin secretion in control subjects and patients with duodenal ulcer.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010434:Pepsin A / Q000378:metabolism*; D012636:Secretory Rate
chemical_list: D010434:Pepsin A