Mendiratta P, Wei JY, Gomez A, Podrazik P, Riggs AT, Rycus P, Gossett J, Prodhan P. Cardiopulmonary resuscitation requiring extracorporeal membrane oxygenation in the elderly: a review of the Extracorporeal Life Support Organization registry. ASAIO J. 2013 May-Jun; 59(3):211-5.