1 Assistant professor of medicine/nephrology, Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, Tennessee; email: juan.p.arroyo@vumc.org .
2 Vice chair for education, director, residency program, Drs. Sol and Marvin Rosenblum Chair in Medicine, professor of medicine, Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
3 Assistant professor of medicine, Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.