@misc{indiciaefc9573511bc8,
  title = {Bilateral interpleural block for midline upper abdominal surgery.},
  author = {E Lee and B Ben-David},
  year = {1991},
  doi = {10.1007/bf03008209},
  url = {https://pubmed.ncbi.nlm.nih.gov/1934226/},
  note = {Source identifier: 1934226}
}