@misc{indiciae3920d75df059,
  title = {A practical guide to assisted operating. 2. Aspiration.},
  author = {E Paul},
  year = {1972},
  doi = {10.1038/sj.bdj.4802912},
  url = {https://pubmed.ncbi.nlm.nih.gov/4509450/},
  note = {Source identifier: 4509450}
}