Tian, X.D., Cheng, Y.X., Liu, G.B., Guo, S.F., Fan, C.L., Zhan, L.H. and Xu, Y.C. (2013) Expressions of type I collagen, α2 integrin and β1 integrin in sclera of guinea pig with defocus myopia and inhibitory effects of bFGF on the formation of myopia. International Journal of Ophthalmology, 6, 54-58.