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@article{jin2019-31359864,
  author  = {Jin, Y. and Jing, M. and Ma, X.},
  title   = {{Effects of Digital Device Ownership on Cognitive Decline in a Middle-Aged and Elderly Population: Longitudinal Observational Study}},
  journal = {Journal of medical Internet research},
  year    = {2019},
  doi     = {10.2196/14210},
  pmid    = {31359864},
  url     = {https://doi.org/10.2196/14210}
}