1. Center for Systems Biology, Department of Bioinformatics, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
2. School of Computer Science and Technology, Soochow University, Suzhou 215006, China
3. Department of Chemistry and Chemical Biology, McMaster University, Hamilton L8S 4L8, Ontario, Canada
4. Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
5. State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China