@misc{indiciae6dc35e4ba917,
  title = {Systemic analgesics during labor.},
  author = {F J Spielman},
  year = {1987},
  doi = {10.1097/00003081-198709000-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/2888556/},
  note = {Source identifier: 2888556}
}