Current status of direct recordings of the sinus node electrogram in man.
D001283:Atrioventricular Node / Q000503:physiopathology; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D012804:Sick Sinus Syndrome / Q000503:physiopathology; D012848:Sinoatrial Block / Q000503:physiopathology; D012849:Sinoatrial Node / Q000503:physiopathology*