1Mathematics Department, Columbus State University, Columbus, GA, USA
2School of Mathematical College, Chongqing Normal University, Chongqing, China
3Michigan Institute for Data Science, University of Michigan, Ann Arbor, MI, USA
4JC School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong SAR, Hong Kong, China
5Shenzhen Research Institute of Chinese University of Hong Kong, Shenzhen, China
6School of Nursing, Hong Kong Polytechnic University, Hong Kong SAR, Hong Kong, China
7Department of Applied Mathematics, Hong Kong Polytechnic University, Hong Kong SAR, Hong Kong, China