<page_title> Selective internal radiation therapy </page_title> <section_title> Radionuclides and microspheres </section_title> <table> <cell> Radionuclide (half life) <col_header> Parameter </col_header> </cell> <cell> Yttrium-90 (64.1 hours) <col_header> Resin </col_header> </cell> </table>
The half-life of yttrium-90 is 64.1 hours.