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A radioimmunoconjugate of m170 monoclonal antibody (MoAb) conjugated with isotope yttrium 90. MoAb m170 is a murine MoAb that recognizes MUC-1 antigen present on the surface of many adenocarcinomas. This radioimmunoconjugate emits beta particles that cause cytotoxicity in tumor cells and has both imaging and therapeutic uses.
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