@article{graham1997-9269213,
  author  = {Graham, J. E. and Rockwood, K. and Beattie, B. L. and Eastwood, R. and Gauthier, S. and Tuokko, H. and McDowell, I.},
  title   = {{Prevalence and severity of cognitive impairment with and without dementia in an elderly population}},
  journal = {Lancet (London, England)},
  year    = {1997},
  doi     = {10.1016/s0140-6736(97)01007-6},
  pmid    = {9269213},
  url     = {https://doi.org/10.1016/s0140-6736(97)01007-6}
}