Faisal Al-Mufarrej1,3
, Marc Margolis1,2
, Eric Strother1
, Barbara Tempesta2
and Farid Gharagozloo1,2 
1
The George Washington University Medical Center, Department of Surgery, 2300 Eye Street NW, Washington, DC 20037, USA
2
Washington Institute of Thoracic and Cardiovascular Surgery, 2175 K Street NW, Washington DC 20037, USA
3
Department of Surgery, Division of Cardio-Thoracic Surgery George Washington Medical Faculty Associates 2150 Pennsylvania Avenue, NW, Washington, DC 20037 USA