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. 2015 Nov 9;16:132. doi: 10.1186/s12863-015-0293-x

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© Parolo et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 1 — Principal Component Analysis of the Italian population. Plot of the first two principal components calculated on the Italian genotypic dataset. Each individual was labeled according to the color scheme reported in the map in the upper-left corner. The map of Italy was created using the shapefile made available by the Italian National Institute of Statistics (ISTAT; http://www.istat.it/it/strumenti/territorio-e-cartografia)