title: Problems on Pennsylvania Avenue.
mesh_terms: D006076:Government; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D011868:Radioisotopes; D011877:Radionuclide Imaging; D012637:Security Measures; D013793:Thallium
chemical_list: D011868:Radioisotopes; D013793:Thallium