@article{qi2021-34073323,
  author  = {Qi, Shige and Sun, Yuying and Yin, Peng and Zhang, Han and Wang, Zhihui},
  title   = {{Mobile Phone Use and Cognitive Impairment among Elderly Chinese: A National Cross-Sectional Survey Study}},
  journal = {International journal of environmental research and public health},
  year    = {2021},
  doi     = {10.3390/ijerph18115695},
  pmid    = {34073323},
  url     = {https://doi.org/10.3390/ijerph18115695}
}