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  • Title: Epidemiology of radiation-induced cancer.
    Author: Radford EP.
    Journal: Environ Health Perspect; 1983 Oct; 52():45-50. PubMed ID: 6653538.
    Abstract:
    The epidemiology of radiation-induced cancer is important for theoretical and practical insights that these studies give to human cancer in general and because we have more evidence from radiation-exposed populations than for any other environmental carcinogen. On theoretical and experimental grounds, the linear no-threshold dose-response relationship is a reasonable basis for extrapolating effects to low doses. Leukemia is frequently the earliest observed radiogenic cancer but is now considered to be of minor importance, because the radiation effect dies out after 25 or 30 years, whereas solid tumors induced by radiation develop later and the increased cancer risk evidently persists for the remaining lifetime. Current estimates of the risk of particular cancers from radiation exposure cannot be fully evaluated until the population under study have been followed at least 40 or 50 years after exposure. Recent evidence indicates that for lung cancer induction, combination of cigarette smoking and radiation exposure leads to risks that are not multiplicative but rather nearly additive.
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