1. QT dispersion in medicine;Sahu;Quart J Med,2000
2. QT and dispersion of ventricular repolarization;Rautaharju;Circulation,1999
3. Medicare Coverage Issues Manual. Available at: http://www.cons.hhs.gov/manuals/pm_trans/R173CIM.pdf. Accessed January 5, 2003
4. Xue Q, Reddy S. New algorithms for QT dispersion analysis. Comput Cardiol 1996;293–296
5. Computerized QT analysis algorithms;Xue;J Electrocardiol,1997