@misc{indiciaef301ac815cfc,
  title = {Maximizing statistical power in group-randomized vaccine trials.},
  author = {T Riggs and J S Koopman},
  year = {2005},
  doi = {10.1017/s095026880500436x},
  url = {https://pubmed.ncbi.nlm.nih.gov/16274496/},
  note = {Source identifier: 16274496}
}