@misc{indiciaedfe0d1af19e5,
  title = {Endogenous opiates: 1982.},
  author = {G A Olson and R D Olson and A J Kastin},
  doi = {10.1016/0196-9781(83)90063-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/6359089/},
  note = {Source identifier: 6359089}
}