The gastric acidity and the incidence of chronic atrophic gastritis in normal subjects and in patients with duodenal ulcer and non-ulcer dyspepsia.
D000328:Adult; D004381:Duodenal Ulcer; D004415:Dyspepsia; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000032:analysis*; D005756:Gastritis; D006801:Humans; D008875:Middle Aged