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Figure 3 Mapping results: FF interval durations. Data are expressed as the mean value. The differences at all sites were statistically significant (p < 0.05). CAF = chronic atrial fibrillation; CS = coronary sinus; LHS = left high septum; LLS = left low septum; PAF = paroxysmal atrial fibrillation; RAN = right anterior wall; RHL = right high lateral wall; RHP = right high posterior wall; RHS = right high septum; RLL = right low lateral wall; RLP = right low posterior wall; RLS = right low septum.