1. Department of Biological Sciences University of South Carolina Columbia SC USA
2. Center for Colon Cancer Research University of South Carolina Columbia SC USA
3. UNC School of Medicine University of North Carolina at Chapel Hill Chapel Hill NC USA
4. Department of Pathology, Microbiology & Immunology School of Medicine University of South Carolina Columbia SC USA
5. Department of Biochemistry College of Graduate Studies and Arizona College of Osteopathic Medicine Midwestern University Glendale AZ USA