1. Department of Medicine, Hennepin County Medical Center, University of Minnesota Medical School, Minneapolis, Minnesota
2. Albany College of Pharmacy, Albany, New York, U.S.A.
3. Department of Peritoneal Dialysis, Academic Medical Center, Amsterdam, The Netherlands
4. Manchester Royal Infirmary, Manchester, United Kingdom
5. Vanderbilt University Medical Center, Nashville, Tennessee
6. Baxter Healthcare Corporation, McGaw Park, Illinois, U.S.A.
7. Renal Division, Jikei-kai University, School of Medicine, Tokyo, Japan
8. University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, U.S.A.
9. Renal Division, Department of Medicine, Evangelic School of Medicine, Curitiba Parana, Brazil
10. University of Toronto, Toronto Hospital, Toronto, Ontario, Canada