title: Q-series. The College of American Pathologists surveillance of activity (dose) calibrators.
mesh_terms: D002138:Calibration / Q000592:standards; D007753:Laboratories / Q000592:standards*; D011851:Radioactivity; D011868:Radioisotopes; D012955:Societies, Medical; D014481:United States
chemical_list: D011868:Radioisotopes