Merchant Raina M, Asch David A
Department of Emergency Medicine, Center for Resuscitation Science, the Leonard Davis Institute of Health Economics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
Circ Cardiovasc Qual Outcomes. 2012 Mar 1;5(2):241-3. doi: 10.1161/CIRCOUTCOMES.111.964825. Epub 2012 Feb 21.