@misc{indiciae5cab9bf21e16,
  title = {An opportunity for change.},
  author = {W A Brown},
  year = {1976},
  doi = {10.1016/s0140-6736(76)91931-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/63861/},
  note = {Source identifier: 63861}
}