title: Editorial: Newer concepts in electrocardiography.
mesh_terms: D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans