@misc{indiciaef691d66815a5,
  title = {Heartbeat synchronized with ventilation.},
  author = {C Schäfer and M G Rosenblum and J Kurths and H H Abel},
  year = {1998},
  doi = {10.1038/32567},
  url = {https://pubmed.ncbi.nlm.nih.gov/9521318/},
  note = {Source identifier: 9521318}
}