1 Department of Surgery, Division of Urology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
2 Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
3 Department of Urology, University of Washington, Seattle, Washington.
4 Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina.
5 Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, North Carolina.
6 Department of Internal Medicine and Charles and Jane Pak Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas.
7 Department of Anesthesiology & Pain Medicine, University of Washington, Seattle, Washington.
8 Department of Surgery (Urology), Washington University in St Louis, St Louis, Missouri.
9 Department of Anesthesiology, Washington University in St Louis, St Louis, Missouri.
10 Department of Urology, Duke University School of Medicine, Durham, North Carolina.
11 Department of Urology, University of Pennsylvania, Philadelphia, Pennsylvania.
12 National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland.
13 Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina.
14 Renal-Electrolyte and Hypertension Division, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.