[Educational lecture on progress in clinical electrocardiography].
D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000033:anatomy & histology; D006801:Humans; D008280:Magnetics; D012804:Sick Sinus Syndrome / Q000503:physiopathology; D012849:Sinoatrial Node / Q000503:physiopathology; D014927:Wolff-Parkinson-White Syndrome / Q000503:physiopathology