@misc{indiciaedb004adfb47b,
  title = {Opioid peptides and opiates differ in receptor selectivity.},
  author = {L Terenius},
  year = {1977},
  doi = {10.1016/0306-4530(77)90031-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/198833/},
  note = {Source identifier: 198833}
}