@misc{indiciae32bccba150f9,
  title = {Application of a sequential t-test in a cohort nested case-control study with multiple controls per case.},
  author = {I van der Tweel and P A van Noord and R Kaaks},
  year = {1993},
  doi = {10.1016/0895-4356(93)90073-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/8455050/},
  note = {Source identifier: 8455050}
}