To cite package ‘fdb’ in publications use:

  Yamaguchi Y (2026). _fdb: Frequentist Dynamic Borrowing for
  Hybrid-Control Survival Trials_. R package version 0.2.2,
  <https://github.com/yamagubed/fdb>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fdb: Frequentist Dynamic Borrowing for Hybrid-Control Survival Trials},
    author = {Yusuke Yamaguchi},
    year = {2026},
    note = {R package version 0.2.2},
    url = {https://github.com/yamagubed/fdb},
  }