Division of Nephrology and Hypertension, University of Utah, Salt Lake City, UT, USA. George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT, USA. Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston Salem, NC, USA. Department of Nephrology, The Second Xiangya Hospital, Changsha, China. Department of Preventive Medicine, University of Alabama at Birmingham, Birmingham, AL, USA. Department of Medicine, Case Western Reserve University, Cleveland, OH, USA. Epidemiological Cardiology Research Center, Wake Forest School of Medicine, Winston Salem, NC, USA. Department of Medicine, Stanford University, Stanford, CA, USA. Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA. Division of General Internal Medicine, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA. Baylor College of Medicine, Houston, TX, USA. Division of Nephrology and Hypertension, Vanderbilt University, Nashville, TN, USA. Division of Hypertension and Clinical Pharmacology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA. Division of General Internal Medicine, University of Miami, Miami, FL, USA. Division of Cardiothoracic and Abdominal Transplant Surgery, Columbia University, New York, NY, USA.