@misc{indiciae777123580857,
  title = {A model for the interim analysis process: a case study.},
  author = {Leticia Delgado-Herrera and Dan Anbar},
  year = {2003},
  doi = {10.1016/s0197-2456(02)00275-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/12559642/},
  note = {Source identifier: 12559642}
}