1 Division of Cardiovascular Surgery, Department of Surgery, Temple University Health System, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
2 Department of Thoracic Medicine and Surgery, Temple University Health System and Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
3 Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, WV, USA.