To cite pubmed.mineR package in publications use:

Rani J, S.Ramachandran, Shah AR (2014). An R package for text mining of PubMed abstracts.. R package version 1.0.5.

Find it with 'help(package=pubmed.mineR)'

Corresponding BibTeX entry:

  @Manual{,
    author = {Jyoti Rani and {S.Ramachandran} and Ab. Rauf Shah},
    title = {An R package for text mining of PubMed abstracts.},
    year = {2014},
    note = {R package version 1.0.5},
  }