1. Department of general surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, P.R. China
2. Nanchang University, Nanchang, Jiangxi, People's Republic of China
3. Department of general surgery, Changzheng Hospital, Nanchang, Jiangxi, 330100, P.R. China
4. Department of ophthalmology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, P.R. China
5. Department of orthopedics, The Second Affiliated Hospital of Nanchang University, Nanchang, China