To cite package ‘gfoRmulaICE’ in publications use:

Cheng Z, Li J, Rein S, O'Dea R, McGrath S, Wen L, Hernán M (2025). gfoRmulaICE: Parametric Iterative Conditional Expectation G-Formula. R package version 1.1.1, https://CRAN.R-project.org/package=gfoRmulaICE.

Corresponding BibTeX entry:

  @Manual{,
    title = {gfoRmulaICE: Parametric Iterative Conditional Expectation
      G-Formula},
    author = {Zhaoxi Cheng and Jing Li and Sophia Rein and Ryan O'Dea
      and Sean McGrath and Lan Wen and Miguel A. Hernán},
    year = {2025},
    note = {R package version 1.1.1},
    url = {https://CRAN.R-project.org/package=gfoRmulaICE},
  }