title: Relation of vulnerability to ECG and action potential characteristics of premature beats.
mesh_terms: D000200:Action Potentials; D000818:Animals; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D004558:Electric Stimulation; D004562:Electrocardiography; D009200:Myocardial Contraction; D011817:Rabbits; D014693:Ventricular Fibrillation / Q000503:physiopathology*