@misc{indiciaed217ca62e3b3,
  title = {Fentanyl, sufentanil, alfentanil and myocardial function.},
  author = {M Finn and J Richardson},
  year = {1989},
  doi = {10.1007/bf03011459},
  url = {https://pubmed.ncbi.nlm.nih.gov/2565169/},
  note = {Source identifier: 2565169}
}