title: [ECG studies in children by the 8-electrode method, recording global electrical activity of the heart in 3 mutually vertical leads].
mesh_terms: D000200:Action Potentials; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D002648:Child; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D013771:Tetralogy of Fallot / Q000503:physiopathology
vernacular_title: Badania EKG u dzieci metoda 8-elektrodowa rejestrujaca globalna czynność elektryczna serca w 3 wzajemnie prostopadłych odprowadzeniach.