@misc{indiciae6fb091ae7f00,
  title = {EXHALATION TUNNEL FOR NONREBREATHING TECHNIQUES.},
  author = {S LEE},
  doi = {10.1097/00000542-196409000-00027},
  url = {https://pubmed.ncbi.nlm.nih.gov/14211503/},
  note = {Source identifier: 14211503}
}