@misc{indiciaeb5e7be292aa6,
  title = {Tryptophyl-polypeptides in rat brain.},
  author = {L Edvinsson and R Håkanson and A L Rönnberg and F Sundler},
  year = {1973},
  doi = {10.1111/j.1471-4159.1973.tb00051.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4703800/},
  note = {Source identifier: 4703800}
}