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Bundle Branch Block. Cedars-Sinai Heart Institute. 2011.
What is an Arrhythmia? National Heart Lung and Blood Institute. 01 Jul 2011. http://www.nhlbi.nih.gov/health/health-topics/topics/arr/
Your Heart’s Electrical System. National Heart Lung and Blood Institute. 01 Jul 2009.
Reviewed September 28, 2011
by Michele Blacksberg RN
Edited by Malu Banuelos