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  • Title: [Characteristic cytogenetic effects of small doses of ionizing radiation].
    Author: Zavitaeva TA, Sevan'kaev AV, Palyga GF.
    Journal: Radiobiologiia; 1984; 24(5):711-4. PubMed ID: 6505167.
    Abstract:
    A study was made of the frequency of chromosome aberrations in human lymphocyte culture after gamma-irradiation (60Co) with doses ranging from 0.05 to 1.0 Gy at dose--rates of 0,005, 0.05 and 0.5 Gy/min. The frequency of structural changes in chromosomes at low doses was higher than it was expected in the case of extrapolating the effect produced by high to low doses of radiation; within the dose range from 0.1 to 0.5 Gy a plateau was registered for aberrations of the exchange type (dicentrics and rings). The abnormal character of the dose dependence of the yield of chromosome aberrations persisted with all three dose - rates under study.
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