title: The effect of photon absorption by breast tissue in myocardial imaging with thallium 201.
mesh_terms: D001940:Breast / Q000528:radiation effects*; D004601:Elementary Particles; D005189:False Positive Reactions; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008875:Middle Aged; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013793:Thallium
chemical_list: D011868:Radioisotopes; D013793:Thallium