1. Hypertension Section, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX USA
2. Department of Physiology, Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Department of Applied Clinical Research University of Texas Southwestern Medical Center Dallas TX USA
4. Cardiology Division, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX USA
5. Information Resources–Research and Academic Systems University of Texas Southwestern Medical Center Dallas TX USA
6. University of Texas Southwestern Medical School Dallas TX USA
7. Center for Adrenal Disorders, Division of Endocrinology, Diabetes, and Hypertension Brigham and Women’s Hospital, Harvard Medical School Boston MA USA
8. Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
9. Corporal Michael J. Crescenz VA Medical Center Philadelphia PA USA