To cite package ‘kpitools’ in publications use:

  Haynes A (2024). _kpitools: Tools for creating key performance
  indicator reports for clinical trial_. R package version 0.2.3,
  <https://github.com/ctu-bern/kpitools>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {kpitools: Tools for creating key performance indicator reports for
clinical trial},
    author = {Alan G. Haynes},
    year = {2024},
    note = {R package version 0.2.3},
    url = {https://github.com/ctu-bern/kpitools},
  }