1. College of Information Engineering, Changsha Medical University, Changsha, Hunan, P. R. China
2. Department of Mathematics, Shanghai Ocean University, Shanghai, China
3. School of Mathematics and Information Science, Henan Polytechnic University, Henan, P. R. China
4. Department of Mathematics, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
5. Geneis (Beijing) Co. Ltd., Beijing, P. R. China
6. Department of Mathematics, Dalian Maritime University, Dalian, Liaoning, P. R. China
7. Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
8. Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
9. Department of Mathematics, Shanghai Normal University, Shanghai, P. R. China