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11. Tsagalou EP, Anastasiou-Nana MI, Karagounis LA, Alexopoulos GP, Batziou C, Toumanidis S, et al. Dispersion of QT and QRS in patients with severe congestive heart failure: Relation to cardiac and sudden death mortality. Hellenic J Cardiol. 2002;43(6):209-15.