@article{chen2017-28798686,
  author  = {Chen, B. and Zheng, T. and Qin, L. and Hu, X. and Zhang, X. and Liu, Y. and Liu, H. and Qin, S. and others},
  title   = {{Strong Association between Plasma Dipeptidyl Peptidase-4 Activity and Impaired Cognitive Function in Elderly Population with Normal Glucose Tolerance}},
  journal = {Frontiers in aging neuroscience},
  year    = {2017},
  doi     = {10.3389/fnagi.2017.00247},
  pmid    = {28798686},
  url     = {https://doi.org/10.3389/fnagi.2017.00247}
}