@misc{indiciaef167b5ac7047,
  title = {Breath hydrogen during sleep.},
  author = {G Metz and D J Jenkins},
  year = {1977},
  doi = {10.1016/s0140-6736(77)91740-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/64679/},
  note = {Source identifier: 64679}
}