1. Pacing therapy in the elderly;Kusumoto;Am J Geriatr Cardiol,2002
2. Basic physiology of cardiac pacing and pacemaker syndrome;Janosik,2000
3. Marcapasos permanente en ancianos. Indicaciones. Complicaciones. Seguimiento;Sánchez;Rev Clin Esp,1981
4. Cardiovascular physiology changes with aging;Cheitlin;Am J Geriatr Cardiol,2003
5. Update on sick sinus syndrome, a disorder of aging;Rodríguez;Geriatrics,1990