Some stable isotopes can be constituted-of-or-filled-with carbon.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with barium.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with tellurium.Logical formLearned from5 sentences. Use can be in (isotope production targets).Logical formLearned from5 sentences. Medical isotopes can be vital.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with interest.Logical formLearned from5 sentences. Producers can be constituted-of-or-filled-with medical isotopes.Logical formLearned from5 sentences. A (carbon isotope) can be radioactive.Logical formLearned from5 sentences. Levels can be constituted-of-or-filled-with some isotope.Logical formLearned from5 sentences. Isotopes may pertain-to a us-state.Logical formLearned from5 sentences. Isotopes can be radioactive.Logical formLearned from5 sentences. An (isotope u-235) can be fissionable.Logical formLearned from5 sentences. (Radio isotopes) may have applications.Logical formLearned from5 sentences. Shortages may pertain-to isotopes.Logical formLearned from5 sentences. A nuclear reactor may create a shortage of radioactive isotopes.Logical formLearned from5 sentences.