title: All-Union Seminar on the Problem of Electrical Stimulation of the Heart.
mesh_terms: D004558:Electric Stimulation / Q000295:instrumentation*; D004567:Electrodes, Implanted; D006321:Heart; D006329:Heart Conduction System; D006801:Humans; D008722:Methods; D008991:Monitoring, Physiologic; D013997:Time Factors