Ectopic beats. Your Heart website. Available at:
. Accessed September 22, 2005
Selzman KA, Gettes LS. Exercise-induced premature ventricular beats: Should we do anything differently?
Ventricular premature beats. Merck Manual – Second Home Edition website. Available at:
. Accessed September 22, 2005.
American Heart Association
Heart Rhythm Society
National Heart, Lung, and Blood Institute
Canadian Health Network
Heart and Stroke Foundation of Canada