L. E. Samuels, E. C. Holmes, M. P. Thomas, and L. Berrizbeitia, “Complications following Placement or Extraction of Endovascular Pacemaker and Defibrillator Leads-- Cardiothoracic Surgical Intervention: Case Reports”, HSF, vol. 7, no. 3, pp. E236-E239, Jan. 2005.