[Pediatric electrocardiography. Sinus arrhythmia].
D000293:Adolescent; D001146:Arrhythmia, Sinus / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis; D006801:Humans; D008297:Male
Electrocardiografía pediátrica.