1. Medical Affairs, Baxter China, Shanghai, PR China
2. Renal Division, Department of Medicine, Peking University First Hospital, Institute of Nephrology, Peking University, Beijing, PR China
3. Key Laboratory of Renal Disease, National Health and Family Planning Commission of the People's Republic of China, Beijing, PR China
4. Renal Medicine and Baxter Novum, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Huddinge, Sweden