title: Isotopic cardiac pacemaker: clinical use.
mesh_terms: D000328:Adult; D006077:Government Agencies; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011005:Plutonium; D011829:Radiation Dosage; D011834:Radiation Monitoring; D013997:Time Factors; D014481:United States
chemical_list: D011005:Plutonium