@misc{indiciae9d8e0a32495c,
  title = {Designed extension of studies based on conditional power.},
  author = {M A Proschan and S A Hunsberger},
  year = {1995},
  url = {https://pubmed.ncbi.nlm.nih.gov/8589224/},
  note = {Source identifier: 8589224}
}