@misc{indiciaeec2adf605e2a,
  title = {Practical midcourse sample size modification in clinical trials.},
  author = {Michael A Proschan and Qing Liu and Sally Hunsberger},
  year = {2003},
  doi = {10.1016/s0197-2456(02)00240-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/12559638/},
  note = {Source identifier: 12559638}
}