@misc{indiciae9571edb16ffd,
  title = {The use of simulation and bootstrap in information-based group sequential studies.},
  author = {D O Scharfstein and A A Tsiatis},
  year = {1998},
  doi = {10.1002/(sici)1097-0258(19980115)17:1<75::aid-sim731>3.0.co;2-n},
  url = {https://pubmed.ncbi.nlm.nih.gov/9463851/},
  note = {Source identifier: 9463851}
}