@article{mayeux1981-7195481,
  author  = {Mayeux, R. and Stern, Y. and Rosen, J. and Leventhal, J.},
  title   = {{Depression, intellectual impairment, and Parkinson disease}},
  journal = {Neurology},
  year    = {1981},
  doi     = {10.1212/wnl.31.6.645},
  pmid    = {7195481},
  url     = {https://doi.org/10.1212/wnl.31.6.645}
}