@misc{indiciae91a6651d3546,
  title = {Exact confidence intervals following a group sequential test.},
  author = {A A Tsiatis and G L Rosner and C R Mehta},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/6518248/},
  note = {Source identifier: 6518248}
}