title: Mechanical damage to small spherical 137Cs sources in a pneumatically operated remote afterloading brachytherapy unit.
mesh_terms: D001918:Brachytherapy / Q000295:instrumentation*; D002588:Cesium Radioisotopes / Q000627:therapeutic use*; D004869:Equipment Safety
chemical_list: D002588:Cesium Radioisotopes