@misc{indiciae62bff7906f0a,
  title = {The schizophrenias: operational definitions.},
  author = {A D Forrest and A J Hay},
  year = {1973},
  doi = {10.1111/j.2044-8341.1973.tb02258.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4764280/},
  note = {Source identifier: 4764280}
}