title: [Characteristics of gastric secretion and mucosal barrier in stomach ulcer in middle-aged and old persons].
mesh_terms: D000367:Age Factors; D000368:Aged; D005260:Female; D005750:Gastric Juice / Q000378:metabolism*; D005753:Gastric Mucosa / Q000378:metabolism; D006801:Humans; D008297:Male; D008875:Middle Aged; D013270:Stomach / Q000503:physiopathology*; D013276:Stomach Ulcer / Q000503:physiopathology*
vernacular_title: Osobennosti zheludochnoi sekretsii i slizistogo bar'era pri iazvennykh porazheniiakh zheludka u lits pozhilogo i starcheskogo vozrasta