1. Department of Public Health Sciences, University of North Carolina Charlotte, Charlotte, NC, USA
2. Department of Population Health and Pathobiology, North Carolina State University, Raleigh, NC, USA
3. Department of Mathematics, University of Tennessee, Knoxville, TN 37996, USA
4. Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA
5. School of Business, Stevens Institute of Technology, Hoboken, NJ 07030, USA