@misc{indiciaed03ba71a9cfd,
  title = {Backrest elevation and pulmonary artery pressures: research analysis.},
  author = {C W Lambert and C L Cason},
  doi = {10.1097/00003465-199011000-00003},
  url = {https://pubmed.ncbi.nlm.nih.gov/2146100/},
  note = {Source identifier: 2146100}
}