@misc{indiciaeb44c31c9ce57,
  title = {Simple low back pain: rest or active exercise?},
  author = {G Waddell},
  year = {1993},
  doi = {10.1136/ard.52.5.317},
  url = {https://pubmed.ncbi.nlm.nih.gov/8323377/},
  note = {Source identifier: 8323377}
}