@misc{indiciae549954471681,
  title = {Upper airway obstruction. Consider physical signs...},
  author = {P Williamson},
  year = {1993},
  doi = {10.1136/bmj.307.6917.1497-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/8281114/},
  note = {Source identifier: 8281114}
}