Figure 3
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1746-4269-6-12/MediaObjects/13002_2010_Article_185_Fig3_HTML.jpg)
Projection of ethnic groups and gender into the principal component analysis (PCA) axes. (A) PCA axes 1 and 2, (B) PCA axes 1 and 3.
Projection of ethnic groups and gender into the principal component analysis (PCA) axes. (A) PCA axes 1 and 2, (B) PCA axes 1 and 3.