Center for Cancer Biomedicine & Departement of Informatics, University of Oslo, 0316 Oslo, Norway. einarro@ifi.uio.no.|Center for Cancer Biomedicine & Departement of Informatics, University of Oslo, 0316 Oslo, Norway. einarro@ifi.uio.no.|Center for Cancer Biomedicine & Departement of Informatics, University of Oslo, 0316 Oslo, Norway. einarro@ifi.uio.no.|Center for Cancer Biomedicine & Departement of Informatics, University of Oslo, 0316 Oslo, Norway. einarro@ifi.uio.no.|Applied Bioinformatics Laboratory, University of Kansas, 2034 Becker Drive, Lawrence, KS 66047, USA. jianwen.fang@nih.gov.