Affiliation
School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.; The Biostatistics Center, George Washington University, Rockville, Maryland.; The Biostatistics Center, George Washington University, Rockville, Maryland.; University of Colorado, School of Medicine, Department of Pediatrics, Section of Endocrinology, Department of Medicine, Division of Renal Diseases and Hypertension, Denver, Colorado.; School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.; The Biostatistics Center, George Washington University, Rockville, Maryland.; School of Medicine, Case Western Reserve University, Cleveland, Ohio.; MassGeneral for Children, Harvard Medical School, Boston, Massachusetts.; School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.; School of Medicine, Washington University, St. Louis, Missouri.; School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.