title: Role of positive feedback in the atrioventricular nodal Wenckebach phenomenon.
mesh_terms: D000818:Animals; D016275:Atrial Function; D001794:Blood Pressure; D003202:Computers, Analog; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology*; D006339:Heart Rate; D011175:Positive-Pressure Respiration; D013997:Time Factors; D016276:Ventricular Function