@misc{indiciae5a2b1dcbfb44,
  title = {Factor analysis of a sleep evaluation questionnaire.},
  author = {A C Parrott and I Hindmarch},
  year = {1978},
  doi = {10.1017/s0033291700014379},
  url = {https://pubmed.ncbi.nlm.nih.gov/26096/},
  note = {Source identifier: 26096}
}