@misc{indiciae799a2fb2e535,
  title = {Evidence for two separate opiate peptide neuronal systems.},
  author = {S J Watson and H Akil and C W Richard and J D Barchas},
  year = {1978},
  doi = {10.1038/275226a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/211426/},
  note = {Source identifier: 211426}
}