1. Trichiasis;Nerad,2001
2. The conjunctiva;Nelson,1997
3. Anatomy and physiology of the ocular surface;Tsubota,2002
4. Existence of slow-cycling limbal epithelial basal cells that can be preferentially stimulated to proliferate: implications on epithelial stem cells;Cotsarelis;Cell,1989
5. The lacrimal functional unit;Beuerman,2004