[Early stomach cancer and so-called precancerous lesions].
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology*; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000473:pathology*