MEDEIROS P de TJ. Eletrocardiograma de Marcapasso: Eletrocardiograma de Marcapasso. J. Cardiac Arrhythmias [Internet]. 1997 Oct. 17 [cited 2025 Aug. 21];10(2):112-3. Available from: https://www.jca.org.br/jca/article/view/3115