*Division of Nephrology, Department of Medicine, University of Iowa, Iowa City, Iowa;
†Medical Service, Veterans Administration Medical Center, Iowa City, Iowa;
‡Department of Quantitative Health Sciences, Cleveland Clinic Foundation, Cleveland, Ohio;
§Division of Nephrology, Department of Medicine, Boston University, Boston, Massachusetts;
‖Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas;
¶Division of Nephrology, Department of Medicine, Duke University, Durham, North Carolina;
**Renal Division, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri;
††Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama;
‡‡Kidney Research Institute, Department of Medicine, University of Washington, Seattle, Washington;
§§Division of Epidemiology, Department of Medicine, University of Utah, Salt Lake City, Utah;
‖‖Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX;
¶¶Division of Nephrology, Department of Medicine, Vanderbilt University, Nashville, Tennessee;
***Division of Nephrology, Department of Medicine, Baystate Medical Center, Springfield, Massachusetts;
†††Department of Surgery,
‡‡‡Tyler Nephrology Associates, Tyler, Texas;
§§§Division of Kidney, Urologic and Hematologic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland; and
‖‖‖Renal Division, Department of Medicine, Center for Clinical Epidemiology and Biostatistics, and Leonard Davis Institute, University of Pennsylvania, Philadelphia, Pennsylvania
Correspondence: Dr. Bradley S. Dixon, University of Iowa College of Medicine, E-300D GH, 200 Hawkins Drive, Iowa City, IA 52242-1081. Phone: 319-356-1626; Fax: 319-356-2999; E-mail: [email protected]
Received June 1, 2010
Accepted November 16, 2010