Reference:
  Author: Mathias Kuhring and Bernhard Y. Renard
  Title: "iPiG: Integrating Peptide Spectrum Matches into Genome Browser Visualizations"
  Journal: PLoS ONE
  Year: 2012
  Volume: 7
  Number: 12
  Pages: e50246
  DOI: 10.1371/journal.pone.0050246
  PMID: 23226516
  URL: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0050246
  eprint: http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0050246&representation=PDF
