Mean (standard error) Bazett‐corrected QTc from global superimposition and from individual representative leads II, V2, and V3, using baseline and tangent methods of QT measurement. QTob = Bazett corrected QTc; Repbaseline(2, V2, V3) = representative lead (II, V2, V3) by baseline method of QT measurement; Reptangent (2, V2, V3) = representative lead (II, V2, V3) by tangent method of QT measurement.