Fig. 1
From: Cyclin-dependent kinase 9 (CDK9) predicts recurrence in Middle Eastern epithelial ovarian cancer
Immunohistochemical analysis of CDK9 expression in primary epithelial ovarian cancer (EOC) and corresponding metastatic tissue. EOC array spots showing a over-expression and b low expression of CDK9 in primary tumor, c over-expression and d low expression of Ki-67 in primary tumor. e low nuclear expression of CDK9 and f high nuclear expression of CDK9 in metastatic tissue. 20X/0.70 objective on an Olympus BX 51 microscope. (Olympus America Inc, Center Valley, PA, USA)