1 Division of Cardiothoracic and Vascular Surgery, Columbia University Medical Center, New-York Presbyterian Hospital, New York, NY; Columbia University Medical Center, New-York Presbyterian Hospital, New York, NY. Electronic address: Js2106@cumc.columbia.edu.
2 Medical City Dallas Hospital, Dallas, Tex.
3 Division of Cardiothoracic and Vascular Surgery, Columbia University Medical Center, New-York Presbyterian Hospital, New York, NY; Columbia University Medical Center, New-York Presbyterian Hospital, New York, NY.