@misc{indiciae3cfe61835750,
  title = {Multiple primary cancers, with special reference to occupational exposure.},
  author = {T Okubo and J F Kraus and N Yamaguchi and S Ishizu and M Sugita},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/4009986/},
  note = {Source identifier: 4009986}
}