title: Shades of grey: radiopharmaceutical chemistry in the 1990s and beyond.
authors.forename: M R
authors.initials: MR
authors.lastname: Kilbourn
mesh_terms: D000818:Animals; D002626:Chemistry, Pharmaceutical / Q000639:trends*; D005544:Forecasting; D006801:Humans; D011854:Radiochemistry / Q000379:methods / Q000592:standards*; D011868:Radioisotopes; D012680:Sensitivity and Specificity
chemical_list: D011868:Radioisotopes