[Variability of the dose effect in the radio-biologic experimentation on animals. Second communication: influence of breed, sex, age as well as of infections on death rates and LD 50 values (author's transl)].


As already demonstrated for Wistar rats, the radioresistance of Siv-50 male and female rats increases continually during their first months of life. Furthermore, males show a higher radioresistance than females during this period. The authors show with the same animals that a very radiosensitive rat strain can become a highly radioresistant strain after 2 1… (More)


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