1 Division of Cardiothoracic Surgery, Department of Surgery, Columbia University Irving Medical Center, New York, NY. Electronic address: [email protected].
2 Division of Cardiothoracic Surgery, Department of Surgery, Emory University, Atlanta, Ga.
3 Division of Cardiothoracic Surgery, Department of Surgery, Columbia University Irving Medical Center, New York, NY.
4 Division of Cardiology, Department of Medicine, Baystate Health, Springfield, Mass.
5 Division of Cardiology, Department of Medicine, Columbia University Medical Center, New York, NY.
6 Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway.
7 Department of Cardiac Surgery, CHUV, Lausanne, Switzerland.
8 Department of Cardiothoracic Surgery, Toronto General Hospital, Toronto, Ontario, Canada.
9 Department of Cardiothoracic Surgery, University of Pennsylvania Medical Center, Philadelphia, Pa.
10 Department of Cardiac Surgery, Ospedale San Raffaele, Milan, Italy.
11 Division of Cardiothoracic Surgery, Department of Surgery, Washington University, St Louis, Mo.
12 Department of Cardiac Surgery, Mount Sinai Hospital, New York, NY.