@misc{indiciae9037207a81e9,
  title = {A clinical trial with an interim analysis.},
  author = {P Y Chi and D R Bristol and J V Castellana},
  year = {1988},
  doi = {10.1002/sim.4780070311},
  url = {https://pubmed.ncbi.nlm.nih.gov/3358025/},
  note = {Source identifier: 3358025}
}