To cite package ‘TwoDcDAPSA’ in publications use:

  Meng N, Kim J, Orbai A, Zeger S (2026). _TwoDcDAPSA: Calculate
  TwoDcDAPSA: PROs-Joint Contrast (PJC) and Swollen–Tender Joints
  Contrast (STC) Scores and Quartiles_. R package version 0.1.1,
  <https://CRAN.R-project.org/package=TwoDcDAPSA>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {TwoDcDAPSA: Calculate TwoDcDAPSA: PROs-Joint Contrast (PJC) and
Swollen–Tender Joints Contrast (STC) Scores and Quartiles},
    author = {Ning Meng and Ji Soo Kim and Ana-Maria Orbai and Scott L. Zeger},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=TwoDcDAPSA},
  }