To cite quincunx in publications use:

Magno R, Duarte I, Maia A (2021). “quincunx: an R package to query, download and wrangle PGS Catalog data.” Bioinformatics, 38(1), 1–3. https://doi.org/10.1093/bioinformatics/btab522.

Corresponding BibTeX entry:

  @Article{,
    title = {quincunx: an R package to query, download and wrangle PGS
      Catalog data},
    author = {Ramiro Magno and Isabel Duarte and Ana-Teresa Maia},
    journal = {Bioinformatics},
    year = {2021},
    volume = {38},
    number = {1},
    pages = {1--3},
    url = {https://doi.org/10.1093/bioinformatics/btab522},
  }