@misc{indiciae9449ecf02ec2,
  title = {Endogenous opioids and LTP: another view.},
  author = {J J Wagner and C Chavkin},
  year = {1992},
  doi = {10.1016/0197-0186(92)90022-j},
  url = {https://pubmed.ncbi.nlm.nih.gov/1339017/},
  note = {Source identifier: 1339017}
}