title: [Study of extrasystole by means of esophageal electrocardiography].
mesh_terms: D005117:Cardiac Complexes, Premature / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology
vernacular_title: Studio sulle extrasistoli mediante l'electtrocardiogramma esofageo.