@misc{indiciaee89f17deb0dc,
  title = {Endogenous opioids: overview and current issues.},
  author = {H Akil and C Owens and H Gutstein and L Taylor and E Curran and S Watson},
  doi = {10.1016/s0376-8716(98)00071-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/9716935/},
  note = {Source identifier: 9716935}
}