[Dysfunction of digestive system secretion: gastric secretion].
D004381:Duodenal Ulcer / Q000378:metabolism; D005745:Gastric Acidity Determination / Q000379:methods; D005750:Gastric Juice / Q000378:metabolism*; D005753:Gastric Mucosa / Q000378:metabolism*; D006801:Humans; D015043:Zollinger-Ellison Syndrome / Q000378:metabolism