@misc{indiciae6ced597533e4,
  title = {[Spinal opioid anesthesia for cesarean section].},
  author = {M Marinova and L Gergova and M Mincheva-Saeva},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1789361/},
  note = {Source identifier: 1789361}
}