Figure 3From: Application of functional genomics to primate endometrium: insights into biological processesGene clustering in the endometrium: Principal component analysis (PCA) of human endometrium across the menstrual cycle. PCA was applied to all endometrial samples, and numbers refer to individual sample labels. "Ambiguous samples" (see text) are labeled AMB (dots in squares). Analysis reveals clustering of samples into cycle phases.With permission from reference [14].Back to article page