title: [Medium-term results in permanent atrial, atrio-guided and bifocal stimulation].
mesh_terms: D002304:Cardiac Pacing, Artificial / Q000009:adverse effects / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans
vernacular_title: Risultati a medio termine nella stimolazione permanente atriale, atrioguidata e bifocale.