@misc{indiciaebe0ae6c40a88,
  title = {Plasma tryptophan binding and depression.},
  author = {A Coppen and E G Eccleston and M Peet},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4845702/},
  note = {Source identifier: 4845702}
}