title: True radiotracers: are we approaching theoretical specific activity with Tc-99m and I-123?
authors.forename: William C
authors.initials: WC
authors.lastname: Eckelman
authors.forename: Mauro
authors.initials: M
authors.lastname: Bonardi
authors.forename: Wynn A
authors.initials: WA
authors.lastname: Volkert
mesh_terms: D000465:Algorithms; D000818:Animals; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D007457:Iodine Radioisotopes; D011849:Radioactive Tracers; D019275:Radiopharmaceuticals / Q000737:chemistry* / Q000493:pharmacokinetics; D013670:Sodium Pertechnetate Tc 99m; D013056:Spectrophotometry, Ultraviolet; D013667:Technetium; D014018:Tissue Distribution
chemical_list: D007457:Iodine Radioisotopes; D011849:Radioactive Tracers; D019275:Radiopharmaceuticals; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m