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Summary plots of the coefficient of variation (COV) for the four different complex fractionated atrial electrogram morphologic parameters (amplitude, upslope, downslope, and peak width) for paroxysmal and long-standing atrial fibrillation. ANT = anterior left atrial free wall; LIPV = left inferior pulmonary vein; LSPV = left superior pulmonary vein; POST = posterior left atrial free wall; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein.
