The cover image shows signature of differentially expressed genes in the human caput, corpus, and cauda epididymidis. Unsupervised clustering algorithm performed with GeneSpring Software v7.2 was applied to median normalized expression data of 2274 modulated qualifiers. Rows represent each of the 2274 differentially expressed qualifiers along the total epididymis. A pseudo-color representation of relative intensity is shown such that red indicates high and blue represents low expression (scale shown on the left of the figure) (See Thimon et al., pp. 691-704).
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