Effect of dofetilide on QT dispersion and the prognostic implications of changes in QT dispersion for patients with congestive heart failure - Brendorp, Bente; Elming, Hanne; Jun, Li; Køber, Lars; Torp-Pedersen, Christian; DIAMOND Study Group. Danish Investigations Of Arrhythmia and Mortality On Dofetilide (European Journal of Heart Failure, 2002)