@misc{indiciaea706b1c70be5,
  title = {Classification of depression.},
  author = {J Angst and H Grigo and M Lanz},
  year = {1981},
  doi = {10.1111/j.1600-0447.1981.tb00704.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6939312/},
  note = {Source identifier: 6939312}
}