@article{xu2017-29061599,
  author  = {Xu, W. and Wang, H. F. and Wan, Y. and Tan, C. C. and Yu, J. T. and Tan, L.},
  title   = {{Leisure time physical activity and dementia risk: a dose-response meta-analysis of prospective studies}},
  journal = {BMJ open},
  year    = {2017},
  doi     = {10.1136/bmjopen-2016-014706},
  pmid    = {29061599},
  url     = {https://doi.org/10.1136/bmjopen-2016-014706}
}