@misc{indiciae01c134aeb5fc,
  title = {Hereditary spastic paraplegia.},
  author = {E R BICKERSTAFF},
  year = {1950},
  doi = {10.1136/jnnp.13.2.134},
  url = {https://pubmed.ncbi.nlm.nih.gov/15415753/},
  note = {Source identifier: 15415753}
}