123I: increasing availability, persisting controversy.
D006801:Humans; D007457:Iodine Radioisotopes / Q000145:classification / Q000191:economics / Q000600:supply & distribution*; D009656:North America; D011237:Predictive Value of Tests; D019275:Radiopharmaceuticals / Q000191:economics / Q000600:supply & distribution; D012051:Reimbursement Mechanisms; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging*; D014055:Tomography, Emission-Computed / Q000379:methods* / Q000706:statistics & numerical data / Q000639:trends*
D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals