@misc{indiciaed7b4cabbc584,
  title = {Checking anti-retraction valves.},
  author = {G M Kyle},
  year = {1993},
  doi = {10.14219/jada.archive.1993.0157},
  url = {https://pubmed.ncbi.nlm.nih.gov/8354778/},
  note = {Source identifier: 8354778}
}