1. From the Department of Ophthalmology, Eye Institute of Ophthalmology of Chinese PLA, Xijing Hospital, the
2. Department of Biochemistry and Molecular Biology, and the
3. Department of Gastrointestinal Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China; and the
4. Eye Hospital, University of Leipzig, Leipzig, Germany.