title: Cardiac pacing with intramyocardial electrodes.
mesh_terms: D000368:Aged; D004567:Electrodes, Implanted; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D009206:Myocardium; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D012826:Silicone Elastomers; D013193:Stainless Steel; D013536:Suture Techniques; D013537:Sutures
chemical_list: D012826:Silicone Elastomers; D013193:Stainless Steel