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Radiotherapy commonly is used to treat cancer and other conditions involving abnormal tissue growth, such as hyperthyroidism.

Creation theory says that God created adult creatures and fully functional systems.Medical applications use artificial radioisotopes that have been produced from stable isotopes bombarded with neutrons.tritium), however, is a radioactive isotope, the other two being stable.Some of these are found in nature; the rest are produced artificially as the direct products of nuclear reactions or indirectly as the radioactive descendants of these products.Each “parent” radioactive isotope eventually decays into one or at most a few stable isotope “daughters” specific to that parent. Some radioactive isotopes are present as terrestrial radiation.

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