1. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, China
2. Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
3. Department of Pathology, The First Affiliated Hospital of Shihezi University, Shihezi, Xinjiang, China
4. Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China