To cite package ‘sumExtras’ in publications use:

  Grealis K, Balise R, Maya D (2026). _sumExtras: Extra Functions for
  'gtsummary' Table Styling_. R package version 1.0.0,
  <https://www.kyleGrealis.com/sumExtras/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sumExtras: Extra Functions for 'gtsummary' Table Styling},
    author = {Kyle Grealis and Raymond Balise and Daniel Maya},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://www.kyleGrealis.com/sumExtras/},
  }