1. DeBusk College of Osteopathic Medicine, Lincoln Memorial University , Harrogate , TN , USA
2. Department of Dermatology , School of Medicine, University of Mississippi Medical Center , Jackson , MS , USA
3. Department of Preventive Medicine , School of Medicine/John D. Bower School , Jackson , MS , USA
4. Department of Pathology , DeBusk College of Osteopathic Medicine, Lincoln Memorial University , Harrogate , TN , USA