@misc{indiciae2b4b8b0a4c8f,
  title = {[Problem of symptom variations in endogenous depression].},
  author = {J Greger and K D Waldmann and H Sommer and U Liebisch},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4533196/},
  note = {Source identifier: 4533196}
}