To cite package ‘SurvLong’ in publications use:

Cao H, Churpek MM, Zeng D, Fine JP, Holloway ST (2025). SurvLong: Analysis of Proportional Hazards Model with Sparse Longitudinal Covariates. R package version 1.5, https://CRAN.R-project.org/package=SurvLong.

Corresponding BibTeX entry:

  @Manual{,
    title = {SurvLong: Analysis of Proportional Hazards Model with
      Sparse Longitudinal Covariates},
    author = {Hongyuan Cao and Mathew M. Churpek and Donglin Zeng and
      Jason P. Fine and Shannon T. Holloway},
    year = {2025},
    note = {R package version 1.5},
    url = {https://CRAN.R-project.org/package=SurvLong},
  }