@misc{indiciae6c8620983454,
  title = {Normal oxyhemoglobin saturation during sleep. How low does it go?},
  author = {R E Gries and L J Brooks},
  year = {1996},
  doi = {10.1378/chest.110.6.1489},
  url = {https://pubmed.ncbi.nlm.nih.gov/8989066/},
  note = {Source identifier: 8989066}
}