title: The pepsins of patients with peptic ulcer.
mesh_terms: D001789:Blood Group Antigens; D004381:Duodenal Ulcer / Q000378:metabolism; D005750:Gastric Juice / Q000032:analysis; D006801:Humans; D010434:Pepsin A / Q000032:analysis* / Q000378:metabolism; D010437:Peptic Ulcer / Q000201:enzymology* / Q000209:etiology
chemical_list: D001789:Blood Group Antigens; D010434:Pepsin A