@misc{indiciae2257224590ae,
  title = {Differentiation between opioid peptides by naltrexone.},
  author = {A Z Rónai and I Berzétei and S Bajusz},
  year = {1977},
  doi = {10.1016/0014-2999(77)90281-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/562763/},
  note = {Source identifier: 562763}
}