@misc{indiciae3b3a4d69f7fb,
  title = {Horizontal versus vertical, or lying down is better.},
  author = {C Gyll},
  year = {1984},
  doi = {10.1259/0007-1285-57-674-191},
  url = {https://pubmed.ncbi.nlm.nih.gov/6692094/},
  note = {Source identifier: 6692094}
}