@misc{indiciaea4cb91fab030,
  title = {Multiple opioid receptors.},
  author = {E T Iwamoto and W R Martin},
  year = {1981},
  doi = {10.1002/med.2610010406},
  url = {https://pubmed.ncbi.nlm.nih.gov/6287130/},
  note = {Source identifier: 6287130}
}