@misc{indiciaea93d6c4ff19f,
  title = {Future directions and research needs.},
  author = {W H Farland},
  year = {1991},
  doi = {10.1289/ehp.9195131},
  url = {https://pubmed.ncbi.nlm.nih.gov/1821366/},
  note = {Source identifier: 1821366}
}