1. Denver Nephrology, Denver, Colorado
2. University of Rochester, Rochester, New York
3. Amgen Inc, Thousand Oaks, California
4. University College London, London, United Kingdom
5. Inserm, Université de Picardie, Amiens, France
6. Klinikum Coburg-GmbH, Coburg, Germany
7. St Louis University, St Louis, Missouri
8. Indiana University, Indianapolis
9. Duke University, Durham, North Carolina
10. Hadassah Hebrew University Medical Center, Jerusalem, Israel
11. Stanford University, Stanford, California