@misc{indiciaeb12eb725d9e1,
  title = {3D airway changes.},
  author = {G D Singh},
  year = {2006},
  doi = {10.1038/sj.bdj.4813542},
  url = {https://pubmed.ncbi.nlm.nih.gov/16703020/},
  note = {Source identifier: 16703020}
}