@misc{indiciaee0302f998e25,
  title = {Pneumatically operated withdrawal and injection system.},
  author = {W P Fife},
  year = {1971},
  doi = {10.1152/jappl.1971.31.6.965},
  url = {https://pubmed.ncbi.nlm.nih.gov/5123681/},
  note = {Source identifier: 5123681}
}