@misc{indiciaec362efba79d3,
  title = {Insomnia: sleep patterns and anxiety level.},
  author = {S N Haynes and D R Follingstad and W T McGowan},
  year = {1974},
  doi = {10.1016/0022-3999(74)90069-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4436838/},
  note = {Source identifier: 4436838}
}