@misc{indiciaeef3973935b83,
  title = {Improved technique for lumbar epidural anesthesia.},
  author = {H A Erdemir and M D Middleton and G Corssen},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/1031172/},
  note = {Source identifier: 1031172}
}