title: [Variation scope of arrhythmias in subjects with normal hearts].
mesh_terms: D000328:Adult; D000337:Aerospace Medicine; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D005117:Cardiac Complexes, Premature / Q000175:diagnosis; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005860:Germany, West; D006327:Heart Block / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008887:Military Medicine; D005082:Physical Exertion; D014636:Valsalva Maneuver
vernacular_title: Die Variationsbreite von Herzrhythmusstörungen bei Herzgesunden.