To cite package ‘pmsampsize’ in publications use:

Ensor J (2023). pmsampsize: Sample Size for Development of a Prediction Model. R package version 1.1.3, https://CRAN.R-project.org/package=pmsampsize.

Corresponding BibTeX entry:

  @Manual{,
    title = {pmsampsize: Sample Size for Development of a Prediction
      Model},
    author = {Joie Ensor},
    year = {2023},
    note = {R package version 1.1.3},
    url = {https://CRAN.R-project.org/package=pmsampsize},
  }