@misc{indiciae340a3719d4da,
  title = {When should levodopa be started?},
  author = {N Quinn and P Critchley and D Parkes and C D Marsden},
  year = {1986},
  doi = {10.1016/s0140-6736(86)90642-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2877169/},
  note = {Source identifier: 2877169}
}