@misc{indiciae9ec5c1e68251,
  title = {Effect of feedback delay upon learned heart rate control.},
  author = {D A Williamson and E B Blanchard},
  year = {1979},
  doi = {10.1111/j.1469-8986.1979.tb01453.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/424494/},
  note = {Source identifier: 424494}
}