To cite package ‘pathifier’ in publications use:

  Y. Drier, M. Sheffer and E. Domany (2013): "Pathway-based
  personalized analysis of cancer". Proceedings of the National Academy
  of Sciences, vol 110 (16), pp: 6388-6393

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Pathway-based personalized analysis of cancer},
    author = {Yotam Drier and Michal Sheffer and Eytan Domany},
    year = {2013},
    journal = {Proceedings of the National Academy of Sciences},
    doi = {10.1073/pnas.1219651110},
    volume = {110 (16)},
    pages = {6388-6393},
  }