[Dynamics of atrial extrasystole].
D000818:Animals; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D004285:Dogs; D004562:Electrocardiography; D006325:Heart Atria; D009638:Norepinephrine / Q000494:pharmacology
D009638:Norepinephrine
Dinamica delle extrasistoli atriali.