Figure 4From: The prognostic significance and value of cyclin D1, CDK4 and p16 in human breast cancerRelative expression of cyclin D1 mRNA to cyclin D1 protein in breast carcinoma specimens. Expression of cyclin D1 mRNA was studied relative to 18S rRNA (CCND1/18S). High and low cyclin D1 indicate the expression levels of the protein.Back to article page