TY - STAND AU - O. Yu AU - H. Yin AU - L. Azoulay BT - Can J Diabetes DO - 10.1016/j.jcjd.2015.02.002 M1 - 5 PY - 2015 SP - 383 EP - 9 T2 - Can J Diabetes TI - The combination of DPP-4 inhibitors versus sulfonylureas with metformin after failure of first-line treatment in the risk for major cardiovascular events and death VL - 39 SN - 1499-2671 ER -