Strasburger Janette F, Cheulkar Bageshree, Wakai Ronald T
Department of Pediatrics, Cardiology Services, Medical College of Wisconsin, Children's Hospital of Wisconsin-Fox Valley, Milwaukee, Wisconsin, USA.
Heart Rhythm. 2008 Jul;5(7):1073-6. doi: 10.1016/j.hrthm.2008.02.035. Epub 2008 Mar 4.