@misc{indiciae684be2b5804a,
  title = {Effects of Kappa Opioid Receptor Agonists on Fentanyl vs. Food Choice in Male and Female Rats: Contingent vs. Non-Contingent Administration},
  author = {Townsend, E. A.},
  year = {2020},
  doi = {10.1101/2020.07.28.225060},
  url = {https://www.biorxiv.org/content/10.1101/2020.07.28.225060v1},
  note = {Source identifier: 10.1101/2020.07.28.225060}
}