Nau, G J Concealed ventricular parasystole uncovered in the form of ventricular escapes of variable coupling. [electronic resource] - Circulation Jul 1981 - 199-207 p. digital Publication Type: Case Reports; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0009-7322 Standard No.: 10.1161/01.cir.64.1.199 doi Subjects--Topical Terms: AgedArrhythmias, Cardiac--diagnosisCarotid Sinus--physiopathologyChildElectrocardiographyHeart Block--physiopathologyHeart Ventricles--physiopathologyHumansMaleMiddle AgedMyocardial ContractionPacemaker, ArtificialSystole