@misc{indiciaeb06be09eaed7,
  title = {A note on last case influence using the partial likelihood approach under heavy censoring.},
  author = {P Oman},
  year = {1992},
  doi = {10.1002/sim.4780111209},
  url = {https://pubmed.ncbi.nlm.nih.gov/1439365/},
  note = {Source identifier: 1439365}
}