@article{petersen1999-10190820,
  author  = {Petersen, R. C. and Smith, G. E. and Waring, S. C. and Ivnik, R. J. and Tangalos, E. G. and Kokmen, E.},
  title   = {{Mild cognitive impairment: clinical characterization and outcome}},
  journal = {Archives of neurology},
  year    = {1999},
  doi     = {10.1001/archneur.56.3.303},
  pmid    = {10190820},
  url     = {https://doi.org/10.1001/archneur.56.3.303}
}