title: QT interval variability is it a measure of autonomic activity?
authors.forename: Ronald D
authors.initials: RD
authors.lastname: Berger
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001341:Autonomic Nervous System / Q000502:physiology* / Q000503:physiopathology*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology* / Q000503:physiopathology*