@misc{indiciaea79053ee0206,
  title = {Primary lateral sclerosis: a case report.},
  author = {M F Beal and E P Richardson},
  year = {1981},
  doi = {10.1001/archneur.1981.00510100058008},
  url = {https://pubmed.ncbi.nlm.nih.gov/7295106/},
  note = {Source identifier: 7295106}
}