title: PTFE as a source guide in iridium-192 breast implants.
mesh_terms: D001918:Brachytherapy; D001943:Breast Neoplasms / Q000601:surgery*; D002277:Carcinoma / Q000601:surgery*; D002404:Catheterization / Q000295:instrumentation; D005260:Female; D006801:Humans; D007495:Iridium / Q000627:therapeutic use; D011138:Polytetrafluoroethylene / Q000627:therapeutic use*; D011868:Radioisotopes / Q000627:therapeutic use
chemical_list: D011868:Radioisotopes; D007495:Iridium; D011138:Polytetrafluoroethylene