@article{muller2001-11176964,
  author  = {Müller, J. and Wenning, G. K. and Verny, M. and McKee, A. and Chaudhuri, K. R. and Jellinger, K. and Poewe, W. and Litvan, I.},
  title   = {{Progression of dysarthria and dysphagia in postmortem-confirmed parkinsonian disorders}},
  journal = {Archives of neurology},
  year    = {2001},
  doi     = {10.1001/archneur.58.2.259},
  pmid    = {11176964},
  url     = {https://doi.org/10.1001/archneur.58.2.259}
}