title: Letter: Comparative study of instant technetium from various commercial suppliers.
mesh_terms: D005069:Evaluation Studies as Topic; D008982:Molybdenum; D011835:Radiation Protection; D011868:Radioisotopes; D011877:Radionuclide Imaging / Q000592:standards*; D013667:Technetium / Q000592:standards*
chemical_list: D011868:Radioisotopes; D013667:Technetium; D008982:Molybdenum