@misc{indiciae4bd6c8deebef,
  title = {Tracheostomy in obstetric practice?},
  author = {C B Collier},
  year = {1989},
  doi = {10.1111/j.1365-2044.1989.tb11302.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2765020/},
  note = {Source identifier: 2765020}
}