@misc{indiciae7bcc749b3901,
  title = {Cocaine self-administration under variable-dose schedules in squirrel monkeys.},
  author = {Leigh V Panlilio and Eric B Thorndike and Charles W Schindler},
  year = {2006},
  doi = {10.1016/j.pbb.2006.05.002},
  url = {https://pubmed.ncbi.nlm.nih.gov/16814853/},
  note = {Source identifier: 16814853}
}