title: The submission of I.N.D. applications for radiopharmaceutical research: when and why.
mesh_terms: D004341:Drug Evaluation; D006801:Humans; D008004:Licensure; D011868:Radioisotopes / Q000627:therapeutic use; D012106:Research; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D011868:Radioisotopes