@misc{indiciaef48335bfe630,
  title = {EPA may be redefining toxic substances.},
  author = {M Sun},
  year = {1981},
  doi = {10.1126/science.7291991},
  url = {https://pubmed.ncbi.nlm.nih.gov/7291991/},
  note = {Source identifier: 7291991}
}