1. Department of Gastroenterology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, China
2. Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, China
3. Department of General Practice, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, China