@misc{indiciae31db2331c84e,
  title = {Letter: Environmental noise.},
  author = {S A Falk},
  year = {1973},
  doi = {10.2105/ajph.63.10.833-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/4742391/},
  note = {Source identifier: 4742391}
}