@misc{indiciae0b7357a6dde4,
  title = {Permissible levels for occupational exposure; basic concepts.},
  author = {R L Zielhuis and W R Notten},
  year = {1979},
  doi = {10.1007/bf00377781},
  url = {https://pubmed.ncbi.nlm.nih.gov/422268/},
  note = {Source identifier: 422268}
}