@article{witting1990-2322616,
  author  = {Witting, W. and Kwa, I. H. and Eikelenboom, P. and Mirmiran, M. and Swaab, D. F.},
  title   = {{Alterations in the circadian rest-activity rhythm in aging and Alzheimer's disease}},
  journal = {Biological psychiatry},
  year    = {1990},
  doi     = {10.1016/0006-3223(90)90523-5},
  pmid    = {2322616},
  url     = {https://doi.org/10.1016/0006-3223(90)90523-5}
}