Regional analysis of the Europe, Middle East, Central/South Asia, and East Asia groups PCA result. This analysis is based on 954,063 SNPs genotyped in the 250 individuals among 51 worldwide populations from the Human Genome Diversity Panel (HGDP-CEPH).  For population IDs, see <a rel="nofollow" class="external text" href="http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007888#pone.0007888.s011">Table S1</a>.
David López Herráez , Marc Bauchet , Kun Tang , Christoph Theunert, Irina Pugach, Jing Li, Madhusudan R. Nandineni, Arnd Gross, Markus Scholz, Mark Stoneking
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López Herráez D, Bauchet M, Tang K, Theunert C, Pugach I, Li J, et al. (2009) Genetic Variation and Recent Positive Selection in Worldwide Human Populations: Evidence from Nearly 1 Million SNPs. PLoS ONE 4(11): e7888. doi:10.1371/journal.pone.0007888 <a rel="nofollow" class="external free" href="http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007888">http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007888</a>