@misc{indiciaef6182d538156,
  title = {Method for strengthening extensor pattern in upright position.},
  author = {B R Lunsford},
  year = {1969},
  doi = {10.1093/ptj/49.5.505},
  url = {https://pubmed.ncbi.nlm.nih.gov/5804305/},
  note = {Source identifier: 5804305}
}