@misc{indiciaeb0821c1801f3,
  title = {Fentanyl depression of respiration: comparison with heroin and morphine},
  author = {Hill, R. and Santhakumar, R. and Dewey, W. L. and Kelly, E. and Henderson, G.},
  year = {2019},
  doi = {10.1101/662627},
  url = {https://www.biorxiv.org/content/10.1101/662627v1},
  note = {Source identifier: 10.1101/662627}
}