1. Effect of intensive blood-glucose control with metformin on complications in overweight patients with type 2 diabetes (UKPDS 34);UK Prospective Diabetes Study (UKPDS) Group;Lancet,1998
2. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus;Diabetes Control and Complications Trial Research Group;N Engl J Med,1993
3. How should HbA1c measurements be reported?;Gorus;Diabetologia,2006
4. Standards of medical care in diabetes—2010;American Diabetes Association;Diabetes Care,2010
5. Approved IFCC reference method for the measurement of HbA1c in human blood;Jeppsson;Clin Chem Lab Med,2002