@misc{indiciae6733b18d0a87,
  title = {An extraordinary opportunity.},
  author = {H A Kahn},
  year = {1973},
  doi = {10.1016/0002-9394(73)90029-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4717336/},
  note = {Source identifier: 4717336}
}