title: Radioisotope-fuelled 'batteries' for heart pacemakers.
mesh_terms: D001698:Biomedical Engineering; D004582:Electronics, Medical / Q000295:instrumentation*; D005579:Fossil Fuels; D006327:Heart Block / Q000628:therapy; D006801:Humans; D009678:Nuclear Energy; D010138:Pacemaker, Artificial / Q000295:instrumentation*; D011005:Plutonium; D011835:Radiation Protection
chemical_list: D005579:Fossil Fuels; D011005:Plutonium