@misc{indiciae15ef012e4c94,
  title = {An unusual airway problem.},
  author = {G R Butlin and G R Sellery and W E Spoerel},
  year = {1970},
  doi = {10.1007/bf03004530},
  url = {https://pubmed.ncbi.nlm.nih.gov/5414111/},
  note = {Source identifier: 5414111}
}