To cite package ‘gen2stage’ in publications use:

  Kim S (2019). _gen2stage: Generalized Two-Stage Designs for Phase II
  Single-Arm Studies_. R package version 1.0,
  <https://CRAN.R-project.org/package=gen2stage>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gen2stage: Generalized Two-Stage Designs for Phase II Single-Arm Studies},
    author = {Seongho Kim},
    year = {2019},
    note = {R package version 1.0},
    url = {https://CRAN.R-project.org/package=gen2stage},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.