objectives: there are much more studies about adolescence in most countries in compare with other age groups. the goal of this study is evaluation of relationship between duration of hospitalization in elderly patients in comparison to the middle ages. methods & materials: this is a descriptive analysis, cross sectional, case study and retrospective research that was done after gathering the da...

introduction to evaluate the expression patterns of cytokeratin (k) 12, 13, and 19 in normal epithelium of the human ocular surface to determine whether k13 could be used as a marker for conjunctival epithelium. methods: total rna was isolated from the human conjunctiva and central cornea. those transcripts that had threefolds or higher expression levels in the conjunctiva than the cornea were ...