To cite package ‘FastSurvival’ in publications use:

  Homma G (2026). _FastSurvival: Fast Survival Analysis and Simulation
  for Clinical Trials_. R package version 0.2.0,
  <https://github.com/gosukehommaex/fastsurvival>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {FastSurvival: Fast Survival Analysis and Simulation for Clinical Trials},
    author = {Gosuke Homma},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://github.com/gosukehommaex/fastsurvival},
  }