1. Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
2. Division of Gastroenterology, Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
3. Department of Medicine, College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan
4. Department of Ophthalmology; Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine; Kaohsiung Taiwan
5. Department of Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
6. Department of Ophthalmology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan