1. Division of Nephrology; University of California San Francisco and San Francisco VA Medical Center; CA USA
2. Division of Nephrology, Department of Medicine; Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society; Bangkok Thailand
3. Division of Renal Medicine, Centre for Molecular Medicine; Karolinska Institutet; Stockholm Sweden
4. Department of Medicine, Division of Nephrology; Stanford University School of Medicine; Stanford California USA
5. Division of Nephrology, and Department of Biochemistry and Molecular Medicine; University of California, Davis; Sacramento California USA