[Methods of study of the epidemiology of stomach cancer].
D002677:Chile; D002980:Climate; D004032:Diet; D004812:Epidemiologic Methods; D005006:Ethnicity; D006801:Humans; D007055:Iceland; D007564:Japan; D008297:Male; D012959:Socioeconomic Factors; D013274:Stomach Neoplasms / Q000453:epidemiology*; D014586:USSR; D014481:United States
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