Negative dose-response relationship for radiation-induced micronuclei in polychromatic erythrocytes of mice

Micronuclei were assessed among the bone marrow PCEs of mice 28 hr after exposures to 1 to 8 Gy of X‐rays and at 6‐hr intervals from 12‐60 hr after exposures to 2 or 6 Gy. At 28 hr, the frequency of micronuclei declined as the exposure level increased from 1 to 8 Gy. The peak proportion of micronucl...

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