1. Tumor Virus RNA Biology Section, Gene Regulation and Chromosome Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health Frederick Maryland
2. Virus laboratory, Affiliated Shengjing Hospital of China Medical University Shenyang China
3. Systems Biology Center, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health Bethesda Maryland
4. Corresponding author