[Improving the effectiveness of preventive examinations for early detection of stomach cancer].
D006801:Humans; D008403:Mass Screening; D011230:Precancerous Conditions / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D013997:Time Factors
Povyshenie effektivnosti profilakticheskikh osmotrov dlia svoevre mennogo vyiavleniia raka zheludka