Cardiac pacemaker function.
D003142:Communication; D004566:Electrodes; D004582:Electronics, Medical; D005069:Evaluation Studies as Topic; D005385:Fingers / Q000098:blood supply; D006327:Heart Block / Q000628:therapy; D006801:Humans; D008722:Methods; D010138:Pacemaker, Artificial / Q000592:standards*; D011674:Pulse; D012039:Regional Blood Flow; D013689:Telephone; D013997:Time Factors