@misc{indiciaecc324d0e9a20,
  title = {Cancer statistics, 1971.},
  author = {E Silverberg and A I Holleb},
  doi = {10.3322/canjclin.21.1.13},
  url = {https://pubmed.ncbi.nlm.nih.gov/4993750/},
  note = {Source identifier: 4993750}
}