@misc{indiciae3e0be226fecc,
  title = {Primary lateral sclerosis.},
  author = {S Fredrikson and H Link},
  year = {1989},
  doi = {10.1001/archneur.1989.00520470018017},
  url = {https://pubmed.ncbi.nlm.nih.gov/2818250/},
  note = {Source identifier: 2818250}
}