Geographical variation in cancer incidence: A clue to causation


The observations on which our knowledge of the geographical variation in the incidence of cancer is based began to be made by surgeons in the last century who, working first in one country and then in another, realized that the pattern of disease with which they had to deal varied with the society in which they worked. Gross differences were readily… (More)
DOI: 10.1007/BF01556055

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