@misc{indiciae70ebc92d4739,
  title = {Noncontact method for sleep stage estimation.},
  author = {Takashi Watanabe and Kajiro Watanabe},
  year = {2004},
  doi = {10.1109/tbme.2004.828037},
  url = {https://pubmed.ncbi.nlm.nih.gov/15490821/},
  note = {Source identifier: 15490821}
}