@misc{indiciaed6910923eb1e,
  title = {State dependent learning and morphine tolerance.},
  author = {S Siegel},
  year = {1988},
  doi = {10.1037//0735-7044.102.2.228},
  url = {https://pubmed.ncbi.nlm.nih.gov/3365318/},
  note = {Source identifier: 3365318}
}