@misc{indiciae818ce6c8f70c,
  title = {Morphine abstinence is associated with increased brain cyclic AMP.},
  author = {H O Collier and D L Francis},
  year = {1975},
  doi = {10.1038/255159b0},
  url = {https://pubmed.ncbi.nlm.nih.gov/165429/},
  note = {Source identifier: 165429}
}