@article{hoehn1967-6067254,
  author  = {Hoehn, Margaret M. Maier and Yahr, Melvin D.},
  title   = {{Parkinsonism: onset, progression and mortality}},
  journal = {Neurology},
  year    = {1967},
  doi     = {10.1212/wnl.17.5.427},
  pmid    = {6067254},
  url     = {https://doi.org/10.1212/wnl.17.5.427}
}