1 Department Ophthalmology, Augusta University, Augusta, GA 30912, USA.
2 School of Science and Health, Western Sydney University, Richmond, NSW 2751, Australia; National Institute for Complementary Medicine (NICM), Western Sydney University, Richmond, NSW 2751, Australia.
3 Division of Gastroenterology/Hepatology, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA.