1. Research Center for Mathematics and Interdisciplinary Sciences, Shandong University, Qingdao, China
2. Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
3. School of Mathematics from Shandong University, China
4. Department of Radiation Oncology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
5. School of Mathematics and Statistics at Shandong University, Weihai, China