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2. 24-hour electrocardiographic study of heart rate and rhythm patterns in population of healthy children;Southall;Br Heart J,1981
3. The spectrum of cardiac rate and rhythm in normal newborns;Montague;Pediatr Cardiol,1982
4. Sinus node dysfunction;Kugler,1990
5. Sinus bradycardia in children (abstr). Proceedings from the XXII Annual Meeting of the Association of European Pediatric Cardiologists, Dubrovnik, Yugoslavia, May 5–9;Fournier,1986