[Case of pediatric electrocardiography. Migratory atrial pacemaker].
D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D002675:Child, Preschool; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male
Casos de electrocardiografía pediátrica. Marcapaso migratorio atrial.