To cite the 'RcmdrPlugin.EZR' package in publications use:

  Kanda, Y. (2013). Investigation of the freely available easy-to-use
  software {EZR} for medical statistics. Bone Marrow Transplantation
  2013;48:452-458, advance online publication, December 3, 2012;
  doi:10.1038/bmt.2012.244

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Investigation of the freely available easy-to-use software {EZR} for medical statistics.},
    author = {Yoshinobu Kanda},
    year = {2013},
    journal = {Bone Marrow Transplantation},
    url = {https://www.nature.com/articles/bmt2012244.pdf},
  }