[Effects of screening of stomach masses on the decrease of stomach cancer mortality and of sick leave].
D000041:Absenteeism; D000328:Adult; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D009787:Occupational Medicine; D013274:Stomach Neoplasms / Q000401:mortality*