@misc{indiciae158f9905d726,
  title = {[Prolonged peridural blockade using a special apparatus].},
  author = {A Ia Ivanov and V P Kobrin},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5505937/},
  note = {Source identifier: 5505937}
}