@misc{indiciae932987a0e7ca,
  title = {Extraction v. injection.},
  author = {D E Boyd},
  year = {1981},
  doi = {10.1038/sj.bdj.4804662},
  url = {https://pubmed.ncbi.nlm.nih.gov/6946819/},
  note = {Source identifier: 6946819}
}