title: [Letter: The premature-beat index].
mesh_terms: D001281:Atrial Fibrillation / Q000209:etiology; D005117:Cardiac Complexes, Premature / Q000150:complications; D004562:Electrocardiography; D006331:Heart Diseases / Q000503:physiopathology*; D006801:Humans
vernacular_title: Vorzeitigkeitsindex