1 Department of Endocrinology and Metabolic Hepatology, the Affiliated Hospital of Qingdao University, Qingdao, China.
2 Department of Gastroenterology and Hepatology, Shanghai East Hospital, Tongji University, Shanghai, China.
3 Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.
4 Singapore Eye Research Institute, Singapore National Eye Center, Singapore, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.