1. Division of Cardiology, MedStar Georgetown University Hospital Physicians Group, Washington, DC (R.B.).
2. Division of Oncology, Georgetown Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC (F.L., K.U.).
3. Division of Cardiology, MedStar Heart and Vascular Institute, MedStar Washington Hospital Center, Georgetown University, Washington, DC (A.B.).