[An investigation of the measurement of gastric pepsin (author's transl)].
D000328:Adult; D005750:Gastric Juice / Q000201:enzymology*; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D010434:Pepsin A / Q000032:analysis*; D010437:Peptic Ulcer / Q000201:enzymology
D010434:Pepsin A