To cite package ‘CFO’ in publications use:

Fang J, Zhang N, Wang W, Yin G (2024). CFO: CFO-Type Designs in Phase I/II Clinical Trials. R package version 2.2.0, https://CRAN.R-project.org/package=CFO.

Corresponding BibTeX entry:

  @Manual{,
    title = {CFO: CFO-Type Designs in Phase I/II Clinical Trials},
    author = {Jialu Fang and Ninghao Zhang and Wenliang Wang and
      Guosheng Yin},
    year = {2024},
    note = {R package version 2.2.0},
    url = {https://CRAN.R-project.org/package=CFO},
  }