@misc{indiciaeea45da93b95d,
  title = {SEQPWR and SEQOPR: computer programs for design of maximum information trials based on group sequential logrank tests.},
  author = {K Kim},
  year = {1995},
  doi = {10.1016/0169-2607(94)01615-m},
  url = {https://pubmed.ncbi.nlm.nih.gov/7796583/},
  note = {Source identifier: 7796583}
}