_:vb50953962 "A pre-malignant neoplasm that is characterized by abnormal growth of dysplastic squamous epithelial cells on the surface of the eye that arises from the conjunctiva that is restricted within the epithelium."^^ . _:vb50953962 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1772848/"^^ . _:vb50953962 . _:vb50953962 . _:vb50953962 . _:vb50953962 . _:vb50953962 "url:https://www.ncbi.nlm.nih.gov/pubmed/27584160"^^ . _:vb50953962 .