@misc{indiciae00b6a75bdf9b,
  title = {Serum enzyme changes during sleep deprivation.},
  author = {D J Kupfer and H Y Meltzer and R J Wyatt and F Snyder},
  year = {1970},
  doi = {10.1038/228768a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5472967/},
  note = {Source identifier: 5472967}
}