Reference:
  Author: Yurii S Aulchenko and Maksim V Struchalin and Cornelia M van Duijn
  Title: ProbABEL package for genome-wide association analysis of imputed data.
  Journal: BMC Bioinformatics
  Year: 2010
  Volume: 11
  Pages: 134
  DOI: 10.1186/1471-2105-11-134
  PMID: 20233392
  URL: http://www.biomedcentral.com/1471-2105/11/134
  eprint: http://bmcbioinformatics.biomedcentral.com/track/pdf/10.1186/1471-2105-11-134
