1. Division of Nephrology, Department of Internal Medicine, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
2. Division of Cardiology, Department of Medicine, Center for Cardiovascular Research, Washington University School of Medicine, St. Louis, MO
3. Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital and University Health Network, University of Toronto, Ontario, Canada
4. Faculty of Medicine, University of Toronto, Ontario, Canada