@misc{indiciaee846ceb2593d,
  title = {The REM cycle is a sleep-dependent rhythm.},
  author = {L C Johnson},
  year = {1980},
  doi = {10.1093/sleep/2.3.299},
  url = {https://pubmed.ncbi.nlm.nih.gov/7403733/},
  note = {Source identifier: 7403733}
}