Isotopes may be used for (cancer treatment).Logical formLearned from5 sentences. A critic may be poisoned with a radioactive isotope.Logical formLearned from5 sentences. A percent may pertain-to a fissile isotope.Logical formLearned from5 sentences. (Isotope traces) can be in efforts.Logical formLearned from5 sentences. (Isotope samples) can be from a country.Logical formLearned from5 sentences. (Laser isotope separation) may be begun in 1970s.Logical formLearned from5 sentences. An attempt can be at (laser isotope separation).Logical formLearned from5 sentences. Medical isotopes may be produced by a reactor.Logical formLearned from5 sentences. (Carbon isotopes) can be radioactive.Logical formLearned from5 sentences. Atoms can be with a (u-235 isotope).Logical formLearned from5 sentences. Isotopes may be used for diagnosis.Logical formLearned from5 sentences. A fissile isotope may be used in applications.Logical formLearned from5 sentences. Levels may pertain-to isotopes.Logical formLearned from5 sentences. A radioactive isotope can be constituted-of-or-filled-with caesium.Logical formLearned from4 sentences. A facility can be for (isotope beams).Logical formLearned from4 sentences.