Dr Zoccali reported no relevant financial relationships KDIGO CHAIRS Bertram L Kasiske, MD, is Professor of Medicine at the University of Minnesota, USA. He received his medical degree from the University of Iowa and completed his Internal Medicine residency and fellowship training in Nephrology at Hennepin County Medical Center where he is currently Director of Nephrology. Dr Kasiske is former Deputy Director of the United States Renal Data System and former Editor-in-Chief of American Journal of Kidney Diseases. He has served as Secretary/Treasurer and on the Board of Directors of the American Society of Transplantation, and on the Organ Procurement and Transplantation Network/United Network of Organ Sharing Board of Directors, and the Scientific Advisory Board of the US National Kidney Foundation. He is currently serving on the Board of Councilors of the International Society of Nephrology. He is the Principal Investigator for a National Institutes of Health-sponsored, multi-center study of long term outcomes after kidney donation and he is the Director of the Scientific Registry of Transplant Recipients. He has over 160 scientific publications in major peer reviewed journals, and 230 review articles, editorials and textbook chapters. Dr Kasiske is also a recipient of the US National Kidney Foundation s Garabed Eknoyan Award in 2003. Advisor/Consultant: Litholink Grant/Research Support: Bristol-Myers Squibb; Merck (Schering Plough) David C Wheeler, MD, FRCP (see biography earlier) EVIDENCE REVIEW TEAM Katrin Uhlig, MD, MS, is the Director, Guideline Develop- ment at the Tufts Center for Kidney Disease Guideline Development and Implementation, Boston, MA, Associate Professor of Medicine at Tufts University School of Medicine, and a staff nephrologist at Tufts Medical Center. Dr Uhlig completed her training in internal medicine, nephrology, and rheumatology in Germany (Aachen University Hospital and Munich University Hospital) and the USA (Georgetown University Medical Center and Tufts Medical Center). 