Spontaneous beat-to-beat variation of PR interval in normal children.
Department of Pediatrics, University of Arizona, Tucson 85724.
R L
RL
Donnerstein
W A
WA
Scott
T R
TR
Lloyd
D000293:Adolescent; D001283:Atrioventricular Node / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D009200:Myocardial Contraction / Q000502:physiology*; D012016:Reference Values