1. Duane's Foundation of clinical ophthalmology on CD-ROM Vol. 2c;Dawson,2006
2. The anatomy and cell biology of the human cornea, limbus, conjunctiva, and adnexa;Gipson,2005
3. Corneal Physiology;Klyce,2005
4. Cornea;Nishida,2005
5. Sclera;Rada,2005