title: Tracking the origin of the NRC 30-mCi rule.
authors.forename: J A
authors.initials: JA
authors.lastname: Siegel
mesh_terms: D006077:Government Agencies / Q000266:history; D049673:History, 20th Century; D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection / Q000266:history* / Q000331:legislation & jurisprudence*; D011868:Radioisotopes / Q000266:history / Q000627:therapeutic use; D014481:United States
chemical_list: D011868:Radioisotopes