@article{ahlskog2011-21768599,
  author  = {Ahlskog, J. E.},
  title   = {{Does vigorous exercise have a neuroprotective effect in Parkinson disease?}},
  journal = {Neurology},
  year    = {2011},
  doi     = {10.1212/wnl.0b013e318225ab66},
  pmid    = {21768599},
  url     = {https://doi.org/10.1212/wnl.0b013e318225ab66}
}