A Study to Understand the Genetics and Clinical Course of Focal Segmental Glomerulosclerosis (FSGS), Treatment-Resistant Minimal Change Disease (TR-MCD), and Diabetic Nephropathy (DN)

St. Clair Nephrology, Roseville

Clinical Research Consultants, Kansas City

Arlington Nephrology, PC, Arlington

South Texas Renal Care Group (Downtown), San Antonio

Glendale Adventist Medical Center, Glendale

Aventiv Research - Phoenix, Mesa

DaVita Mojave Sage Dialysis, Victorville

Colorado Kidney Care, Denver

Renal and Transplant Associates of New England, PC, Springfield

DaVita Clinical Research, Minneapolis

DaVita Pelican Point Dialysis, Las Vegas

High Desert Nephrology, Gallup

Akron Nephrology Associates, Inc., Akron

Southeast Renal Research Institute, Chattanooga

North Texas Kidney Disease Association, Lewisville

San Antonio Kidney Disease Center Physicians Group (Wurzbach Road), San Antonio

South Texas Renal Care Group (Westover Hills), San Antonio

San Antonio Kidney Disease Center Physicians Group (Carnoustie Drive), San Antonio