@article{hindle2013-23426759,
  author  = {Hindle, J. V. and Petrelli, A. and Clare, L. and Kalbe, E.},
  title   = {{Nonpharmacological enhancement of cognitive function in Parkinson's disease: a systematic review}},
  journal = {Movement disorders : official journal of the Movement Disorder Society},
  year    = {2013},
  doi     = {10.1002/mds.25377},
  pmid    = {23426759},
  url     = {https://doi.org/10.1002/mds.25377}
}