@misc{indiciae52bbe2489fac,
  title = {Endogenous opiates: 1999.},
  author = {A L Vaccarino and A J Kastin},
  year = {2000},
  doi = {10.1016/s0196-9781(00)00345-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/11150656/},
  note = {Source identifier: 11150656}
}