@misc{indiciaea1d8821f9668,
  title = {Intensive exercises for the low back.},
  author = {I Brown},
  year = {1970},
  doi = {10.1093/ptj/50.4.487},
  url = {https://pubmed.ncbi.nlm.nih.gov/4244859/},
  note = {Source identifier: 4244859}
}