title: Power pulse generators, electrodes, and longevity.
mesh_terms: D004374:Ductus Arteriosus, Patent / Q000628:therapy; D004553:Electric Conductivity; D004566:Electrodes; D004573:Electrolytes; D006327:Heart Block / Q000151:congenital; D006801:Humans; D007223:Infant; D008094:Lithium; D008136:Longevity; D008628:Mercury; D010138:Pacemaker, Artificial; D011674:Pulse; D015032:Zinc
chemical_list: D004573:Electrolytes; D008094:Lithium; D008628:Mercury; D015032:Zinc