Page Stephen P, Pfeffer Cameron, Schilling Richard J, Sporton Simon C
Department of Electrophysiology, St Bartholomew's Hospital, London, UK.
J Cardiovasc Electrophysiol. 2012 Jun;23(6):669-71. doi: 10.1111/j.1540-8167.2011.02174.x. Epub 2011 Sep 28.