@misc{indiciae8af78fa8b75b,
  title = {Interim analyses in clinical research.},
  author = {D A Berry},
  year = {1987},
  doi = {10.3109/07357908709032904},
  url = {https://pubmed.ncbi.nlm.nih.gov/3427509/},
  note = {Source identifier: 3427509}
}