Etiology of duodenal ulcer.  I.  Relation of specific psychological characteristics to rate of gastric secretion (serum pepsinogen).
D004381:Duodenal Ulcer; D004792:Enzyme Precursors / Q000097:blood*; D005750:Gastric Juice; D006801:Humans; D001523:Mental Disorders; D020116:Pepsinogen A; D010435:Pepsinogens; D010437:Peptic Ulcer / Q000523:psychology*
D004792:Enzyme Precursors; D010435:Pepsinogens; D020116:Pepsinogen A
ENZYME PRECURSORS/in blood; GASTRIC JUICE; PEPTIC ULCER/psychology