title: [A frequency-varied heart-stimulating pacemaker system is under further development].
mesh_terms: D006327:Heart Block / Q000503:physiopathology / Q000628:therapy; D006339:Heart Rate; D006801:Humans; D010138:Pacemaker, Artificial; D012119:Respiration
vernacular_title: Frekvensvarierad hjärtstimulering pacemakersystem under vidareutveckling.