@misc{indiciae773aa088ed01,
  title = {Butorphanol and pethidine in premedication--a comparative study.},
  author = {B Atiyat and M S Takrouri},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3062353/},
  note = {Source identifier: 3062353}
}