To cite package ‘jentre’ in publications use:

  Suster C (2026). _jentre: Toolkit for the 'Entrez' API_. R package
  version 0.1.0.9000, <https://github.com/cidm-ph/jentre>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {jentre: Toolkit for the 'Entrez' API},
    author = {Carl Suster},
    year = {2026},
    note = {R package version 0.1.0.9000},
    url = {https://github.com/cidm-ph/jentre},
  }