Reference:
  Author: Daehwan Kim and Li Song and Florian P. Breitwieser and Steven L. Salzberg
  Title: "Centrifuge: rapid and sensitive classification of metagenomic sequences"
  Journal: Genome Research
  Year: 2016
  Volume: 26
  Number: 12
  Pages: 1721-1729
  DOI: 10.1101/gr.210641.116
  PMID: 27852649
  URL: http://genome.cshlp.org/content/early/2016/11/16/gr.210641.116.abstract
  eprint: http://genome.cshlp.org/content/early/2016/11/16/gr.210641.116.full.pdf+html
