Ulcuscarcinoma.
D000230:Adenocarcinoma / Q000209:etiology*; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000145:classification / Q000453:epidemiology / Q000209:etiology* / Q000601:surgery; D013276:Stomach Ulcer / Q000150:complications* / Q000453:epidemiology