MURR 1 (IMAGE) University of Missouri-Columbia Caption Chris McCarty, a University of Missouri Research Reactor (MURR) shipping technician, loads shipping casks containing radioisotopes used in cancer treatments and research around the world. MURR saves and improves lives as the only U.S. producer of four critical radioisotopes used in the treatment of liver, thyroid, pancreatic and prostate cancers. Credit University of Missouri Usage Restrictions For media use License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.