1 Graduate School, Bengbu Medical College, Bengbu, China.
2 Department of Ophthalmology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
3 Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Congenital Aniridia Research, Saarland University, Homburg (Saar), Germany.
4 Department of Ophthalmology, Semmelweis University, Budapest, Hungary.