Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.|Bioinformatics Core Facility, Institute for Medical Informatics, Oslo University Hospital, Oslo, Norway. staaln@ifi.uio.no.