@misc{indiciae657cfd8bf18c,
  title = {To IPPB or not to IPPB.},
  author = {P M Cox and E J Caldwell and J M Kjeldgaard},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/333047/},
  note = {Source identifier: 333047}
}