@misc{indiciae23f170806f8a,
  title = {A study in concealed reciprocal conduction.},
  author = {P A Barrett and L Schamroth},
  year = {1980},
  doi = {10.1378/chest.78.6.870},
  url = {https://pubmed.ncbi.nlm.nih.gov/7449466/},
  note = {Source identifier: 7449466}
}