title: Letter: Coincidence and noncoincidence counting.
mesh_terms: D003327:Coronary Disease / Q000175:diagnosis*; D011197:Potassium Radioisotopes; D011868:Radioisotopes; D011877:Radionuclide Imaging / Q000295:instrumentation*; D012413:Rubidium
chemical_list: D011197:Potassium Radioisotopes; D011868:Radioisotopes; D012413:Rubidium