@article{stephen2017-28049634,
  author  = {Stephen, R. and Hongisto, K. and Solomon, A. and Lönnroos, E.},
  title   = {{Physical Activity and Alzheimer's Disease: A Systematic Review}},
  journal = {The journals of gerontology. Series A, Biological sciences and medical sciences},
  year    = {2017},
  doi     = {10.1093/gerona/glw251},
  pmid    = {28049634},
  url     = {https://doi.org/10.1093/gerona/glw251}
}