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. 2014 Aug 21;12:66. doi: 10.1186/s12915-014-0066-4

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© Puigbò et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Principal component analysis of the rates of gains, losses, expansions and reductions. (a) XY-plot of the two first two principal components. (b) Principal component analysis loadings. Comp., component.