@misc{indiciae9dc2162b9aef,
  title = {Estimating survival functions from the life table.},
  author = {E A Gehan},
  year = {1969},
  doi = {10.1016/0021-9681(69)90035-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/5770430/},
  note = {Source identifier: 5770430}
}