@misc{indiciae0fd33e129139,
  title = {[Methodologic problems in studying mortality among industrial workers (using the coal industry as an example)].},
  author = {F Kh Zinger and E S Sorokin},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6873717/},
  note = {Source identifier: 6873717}
}