@misc{indiciae7dec181c4216,
  title = {Functional disability scales for back pain.},
  author = {J A Kopec and J M Esdaile},
  year = {1995},
  doi = {10.1097/00007632-199509000-00021},
  url = {https://pubmed.ncbi.nlm.nih.gov/8560347/},
  note = {Source identifier: 8560347}
}