Classification, surface modification and biocompatibility of artificial cornea materials 
Wang Yang1, Xing Chun-sheng2, Zhou Xing1, Wang Lei1, Han Hong-guang3
Chinese Journal of Tissue Engineering Research . 2012, (16): 2989 -2996 .  DOI: 10.3969/j.issn.1673-8225.2012.16.031