@misc{indiciae889b79ae4c1e,
  title = {Freedom from filth.},
  author = {J F Gracey},
  year = {1993},
  doi = {10.1136/vr.132.7.170},
  url = {https://pubmed.ncbi.nlm.nih.gov/8456550/},
  note = {Source identifier: 8456550}
}