title: Fixed and variable coupling of ventricular extrasystoles.
mesh_terms: D001024:Aortic Valve Stenosis / Q000188:drug therapy / Q000503:physiopathology; D001145:Arrhythmias, Cardiac / Q000150:complications; D005117:Cardiac Complexes, Premature / Q000150:complications / Q000503:physiopathology*; D009202:Cardiomyopathies / Q000188:drug therapy / Q000503:physiopathology; D003327:Coronary Disease / Q000503:physiopathology; D004077:Digoxin / Q000627:therapeutic use; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000188:drug therapy / Q000503:physiopathology; D009203:Myocardial Infarction / Q000188:drug therapy / Q000503:physiopathology; D011660:Pulmonary Heart Disease / Q000503:physiopathology; D013997:Time Factors
chemical_list: D004077:Digoxin