Stulak John M, Griffith Kevin E, Nicklas John M, Pagani Francis D
Section of Cardiac Surgery, University of Michigan Health System, Ann Arbor, Mich, USA.
J Thorac Cardiovasc Surg. 2011 Sep;142(3):e140-2. doi: 10.1016/j.jtcvs.2011.04.012. Epub 2011 May 17.