1. School of Computer Science and Technology, Tianjin University, Tianjin, China
2. Department of Biological Engineering, School of Chemical Engineering, Tianjin University, Tianjin, China
3. Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai, China
4. Statistical Cancer Genomics, Paul O'Gorman Building, UCL Cancer Institute, University College London, London, UK