title: [Clinical significance of serum group I pepsinogen level in gastric duodenal diseases].
mesh_terms: D000328:Adult; D000368:Aged; D004378:Duodenal Diseases / Q000201:enzymology*; D004381:Duodenal Ulcer / Q000201:enzymology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010435:Pepsinogens / Q000097:blood*; D013272:Stomach Diseases / Q000201:enzymology*; D013274:Stomach Neoplasms / Q000201:enzymology; D013276:Stomach Ulcer / Q000201:enzymology
chemical_list: D010435:Pepsinogens