@misc{indiciaeeb3f0c04f137,
  title = {Preventing depression with tryptophan.},
  author = {D Hertz and F G Sulman},
  year = {1968},
  doi = {10.1016/s0140-6736(68)91499-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4170852/},
  note = {Source identifier: 4170852}
}