@misc{indiciaecda04a6d2e86,
  title = {A simulation approach to determining sample size and power for group sequential trials.},
  author = {Edward Lakatos},
  year = {2002},
  doi = {10.1016/s0197-2456(01)00178-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/11943445/},
  note = {Source identifier: 11943445}
}