1 Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts. Electronic address: plibby@bwh.harvard.edu.
2 Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts. Electronic address: https://twitter.com/DLBHATTMD.
3 Department of Radiology/Nuclear Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.