To cite package ‘nphRCT’ in publications use:

  Magirr D, Barrott I (2024). _nphRCT: Non-Proportional Hazards in
  Randomized Controlled Trials_. R package version 0.1.1,
  <https://CRAN.R-project.org/package=nphRCT>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nphRCT: Non-Proportional Hazards in Randomized Controlled Trials},
    author = {Dominic Magirr and Isobel Barrott},
    year = {2024},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=nphRCT},
  }