To cite rhosp in publications use:

Barth'es J, Dutang C (2018). rhosp: an actuary approach of risk evaluation during hospitalizations.. R package version 1.10.

Corresponding BibTeX entry:

  @Manual{,
    title = {rhosp: an actuary approach of risk evaluation during
      hospitalizations.},
    author = {Julie Barth'es and Christophe Dutang},
    year = {2018},
    note = {R package version 1.10},
  }