@misc{indiciae4d464afab881,
  title = {The circle system as a humidifier.},
  author = {J P Bengtson and A Bengtson and O Stenqvist},
  year = {1989},
  doi = {10.1093/bja/63.4.453},
  url = {https://pubmed.ncbi.nlm.nih.gov/2818924/},
  note = {Source identifier: 2818924}
}