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A colorless, heavy, odorless noble gas element with atomic symbol Xe, atomic number 54, and atomic weight 131.3. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C85247\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C85247\' NCI Thesaurus)
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