title: The mature stomach. Still pumping out acid?
authors.forename: M
authors.initials: M
authors.lastname: Feldman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D005744:Gastric Acid / Q000378:metabolism*; D005757:Gastritis, Atrophic / Q000453:epidemiology*; D006801:Humans