To cite package ‘AntibodyTiters’ in publications use:

  Mizumoto Y, Kato H (2022). _AntibodyTiters: Antibody Titer Analysis
  of Vaccinated Patients_. R package version 0.1.24,
  <https://CRAN.R-project.org/package=AntibodyTiters>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {AntibodyTiters: Antibody Titer Analysis of Vaccinated Patients},
    author = {Yuuki Mizumoto and Hiroaki Kato},
    year = {2022},
    note = {R package version 0.1.24},
    url = {https://CRAN.R-project.org/package=AntibodyTiters},
  }