1Brigham and Women's Hospital, Boston, Massachusetts

2Harvard Medical School, Boston, Massachusetts

3Bayer US, LLC, Pittsburgh, Pennsylvania

4Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland

5Departments of Medicine, Epidemiology and Population Health, and Health Policy, Stanford University School of Medicine, Stanford, California

Correspondence: Dr. Finnian R. Mc Causland, Renal Division, Brigham and Women's Hospital, 75 Francis Street, MRB-4, Boston, MA 02115. Email: [email protected]

See related editorial, “Mechanistic Basis for Intradialytic Hypertension with Hemodialysis,” on pages 283–285.