Division of Nutrition;
School of Public Health;
Sun Yat-sen University;
Guangzhou 510080;
China;
Banting and Best Diabetes Centre;
Faculty of Medicine;
University of Toronto;
Toronto;
ON M5G 2C4;
Canada;
Dept.of Physiology;
University of Toronto;
Toronto;
ON M5G 1X8;
Canada;
Division of Advanced Diagnostics;
Toronto General Hospital Research Institute;
University Health Network;
Toronto;
ON M5G 2C4;
Canada;