1. Department of Emergency Medicine, Augusta University, Augusta, GA, USA
2. Edinburgh Napier University, Edinburgh, UK
3. Medical College of Georgia, Augusta University, Augusta, GA, USA
4. Department of Psychology, Georgia State University, Atlanta, GA, USA
5. Laboratory for Theory and Mathematical Modeling, Department of Medicine-Division of Infectious Diseases, Medical College of Georgia, Augusta University, Augusta, GA, USA
6. Department of Mathematics, Augusta University, Augusta, GA, USA