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. 2009 Apr 9;7:16. doi: 10.1186/1477-5956-7-16

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Copyright © 2009 Amelina and Cristobal; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Organization of data by multivariate analysis. (A) and (C) correspond to female; (B) and (D) correspond to male. (A) and (B) – principle component analysis score plots. PCA has been performed on a correlation matrix, each spot represents a gel. (C) and (D) – hierarchical clustering dendrogram with single linkage and Euclidean distance. The spots that participated in both types of multivariate analysis were present in 100% of the 2-DE maps and passed the filter of the one-way ANOVA (p < 0.05) statistical test.