@misc{indiciaeba52ce090ed4,
  title = {L-tryptophan in depression.},
  author = {H M van Praag and J Korf},
  year = {1970},
  doi = {10.1016/s0140-6736(70)90200-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4195577/},
  note = {Source identifier: 4195577}
}