Is fentanyl appropriate for postoperative epidural PCA?

@article{Chrubasik1993IsFA,
  title={Is fentanyl appropriate for postoperative epidural PCA?},
  author={Joachim Chrubasik and Eike Martin and Sigrun A Chrubasik and Guy Friedrich},
  journal={Anesthesia and analgesia},
  year={1993},
  volume={76 5},
  pages={1163-4}
}