1. Department of Internal Medicine, East Tennessee State University, Johnson City, TN, USA
2. Department of Cardiology, Charleston Area Medical Center, Charleston, WV, USA
3. Department of Cardiology, ETSU College of Medicine, Johnson City, TN, USA
4. Department of Interventional Cardiology, Florida Hospital, Tampa, FL, USA
5. Department of Hospice and Palliative Medicine, Wellmont Health System, Kingsport, TN, USA