title: [Surgical investigation of cases of stomach cancer found at mass gastric examination: significance and evaluation of mass gastric examination conducted annually].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery