5Clark C. Non-melanorn a skin cancer past,present and future[J]. Current Problems Derrnatol, 2001,13 (2) : 109 - 113.
6Saari K M, Paavilainen V, Tuominen J, et al. Epidemiology of basal cell carcinoma of the eyelid in South-Western Finland [ J ]. Graefe's Arch Clin Exp Opthahnol,2001,239 ( 3 ) :230 - 233.