title: Cardiac electrodes and electrograms: some new observations and concerns.
mesh_terms: D000535:Aluminum; D000818:Animals; D002482:Cellulose; D003300:Copper; D004285:Dogs; D004553:Electric Conductivity; D004562:Electrocardiography / Q000295:instrumentation*; D004567:Electrodes, Implanted; D004594:Electrophysiology; D005898:Glass; D007495:Iridium; D010984:Platinum
chemical_list: D007495:Iridium; D010984:Platinum; D003300:Copper; D002482:Cellulose; D000535:Aluminum