19thcent 19thcentury 2008n-740 2011i-317 20thcent arrhythmias artificial bioelectricenergysources biologicalcontrolsystems bone boneandbones cardiac cardiacpacing cardiovascular cardiovascularinstruments cartilage defibrillators diseases electriccountershock electricity electricproperties electricstimulation electricstimulationtherapy electrification electrocardiography electronicbehaviorcontrol electrophysiologicalphenomena electrophysiologictechniques electrophysiology england exercisetherapy forecasts heart history historyofmedicine implantable implanted london medicalinstrumentsandapparatus models nervoussystem pacemaker parapsychology physiologicaleffect physiology qt11fe5 quacksandquackery rd598c3422009 regeneration rm871 socialaspects technologyandcivilization therapeuticuse therapy treatment twenty-firstcentury ultravioletradiation ultraviolettherapy wb495e3781989 wb495t3981983 we200e391978 wg168c26172009