1. U.S. Renal Care, Plano, Texas
2. The Rogosin Institute, Weill Cornell Medical College, New York, New York
3. Care Delivery, Fresenius Kidney Care, Waltham, Massachusetts
4. Davita, Inc., Denver, Colorado
5. Satellite Healthcare, San Jose, California
6. Intermountain Health, Murray, Utah
7. Health Systems Management, Inc., Tifton, Georgia
8. Atlantic Dialysis Management Services, New York, New York
9. Fresenius Kidney Care, Waltham, Massachusetts
10. REACH/Dialysis Clinic, Inc., Nashville, Tennessee
11. Centers for Dialysis Care, Cleveland, Ohio
12. Puget Sound Kidney Centers, Everett, Washington
13. Sawtooth Epidemiology and Infectious Diseases, Boise, Idaho