@misc{indiciae8f6f874c9d3b,
  title = {Change and retrospect.},
  author = {H CLEGG},
  year = {1962},
  doi = {10.1136/ard.21.4.323},
  url = {https://pubmed.ncbi.nlm.nih.gov/14021660/},
  note = {Source identifier: 14021660}
}