1 Department of Internal Medicine, Allegheny General Hospital, Pittsburgh, Pennsylvania. Electronic address: [email protected].
2 Department of Internal Medicine, Forrest General Hospital, Hattiesburg, Mississippi.
3 Shifa College of Medicine, Islamabad, Pakistan.
4 Division of Cardiology, Lahey Hospital and Medical Center, Beth Israel Lahey Health, Burlington, Massachusetts.
5 Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, Texas.
6 Michael E. DeBakey Veterans Affair Medical Center; Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, Texas.
7 Department of Cardiac Surgery, Lankenau Heart Institute, Lankenau Medical Center, Main Line Health, Wynnewood, Pennsylvania.
8 Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
9 Division of Thoracic and Cardiac Surgery, Department of Surgery; Division of Cardiology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.