@misc{indiciae57a20ff8dec3,
  title = {Lower extremity exercise device made from recycled materials.},
  author = {S C Fisher},
  year = {1974},
  doi = {10.1093/ptj/54.4.376},
  url = {https://pubmed.ncbi.nlm.nih.gov/4460041/},
  note = {Source identifier: 4460041}
}