@misc{indiciaec60febb1c4b9,
  title = {Polyvinyl chloride T-tubes.},
  author = {D J Bouchier-Hayes},
  year = {1973},
  doi = {10.1136/bmj.3.5879.543-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/4741615/},
  note = {Source identifier: 4741615}
}