@misc{9061,
  author = {O. Yu and H. Yin and L. Azoulay},
  title = {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},
  year = {2015},
  journal = {Can J Diabetes},
  volume = {39},
  number = {5},
  pages = {383-9},
  issn = {1499-2671},
  doi = {10.1016/j.jcjd.2015.02.002},
}