Monophasic versus biphasic waveforms.
Reproduced with permission from Niebauer MK, Brewer JE, Chung MK, et
al. Comparison of the rectilinear biphasic waveform with the
monophasic damped sine waveform for external cardioversion of atrial
fibrillation and flutter. Am J Cardiol 2004; 93: 1495–9.