BIRMINGHAM, Ala. - Two radioactive isotopes of the metallic element scandium, or Sc, appear to be ideal for visualizing, and then destroying, solid tumors. A barrier, however, blocks their use -- the inability to rapidly produce and purify the isotopes in useful amounts.
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https://www.eurekalert.org/pub_releases/2019-08/uoaa-tcm082119.php
Source: Eurekalert