@misc{indiciaea731b0e54ee9,
  title = {Negative pressure unit.},
  author = {G A McLELLAN},
  year = {1950},
  doi = {10.1016/0002-9610(50)90518-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/15432842/},
  note = {Source identifier: 15432842}
}