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A radioactive isotope of iridium. Iridium-192 emits gamma rays and has a half-life of 74 days. A high dose rate of this radioisotope can be used in brachytherapy to treat tumors by selectively delivering a cytotoxic dose of radiation to the tumor site. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C104270\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C104270\' NCI Thesaurus)
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