1. Department of Veterans Affairs Medical Center, Birmingham, Alabama
2. Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
3. Division of Nephrology, Hypertension, and Renal Transplantation, College of Medicine Electron Microscopy Core, University of Florida, Gainesville, Florida
4. Heflin Center for Genomic Science, Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama
5. Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida