Survival and bone tumor hazard from internal deposition of 226Ra in beagles.


The survival of 132 young adult control beagles and 117 beagles receiving graded injections of 226Ra ranging from 0.27 kBq kg-1 to 384.2 kBq kg-1 body mass was analyzed. The hazards of natural deaths, all deaths in injection groups, and deaths by bone tumors were assumed to follow a Weibull distribution with a common shape factor of 6.3. Only the scale… (More)


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