@article{postuma2012-22561644,
  author  = {Postuma, R. B. and Lang, A. E. and Gagnon, J. F. and Pelletier, A. and Montplaisir, J. Y.},
  title   = {{How does parkinsonism start? Prodromal parkinsonism motor changes in idiopathic REM sleep behaviour disorder}},
  journal = {Brain : a journal of neurology},
  year    = {2012},
  doi     = {10.1093/brain/aws093},
  pmid    = {22561644},
  url     = {https://doi.org/10.1093/brain/aws093}
}