To cite hospitals in publications use:

  Ramiro Magno. (2021).  An R data package of the Portuguese NHS
  hospitals (v0.1.0). Zenodo. https://doi.org/10.5281/zenodo.5729243.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{An R data package of the Portuguese NHS hospitals}},
    author = {Ramiro Magno},
    note = {R package version 0.1.0},
    year = {2021},
    url = {https://doi.org/10.5281/zenodo.5729243},
  }