The attached map of the HLAA*3 allele (aka HLA A3) was in from Cavalli-Sforza, et al's "The History and Geography of Human Genes" (unabridged 1994).

It is the most likely single gene involved in autism spectrum disorder susceptibility according to my current research, although it is merely one allele in the sixth principal component of Europe, which centers in Lappland, discussed on page 294 and mapped on page 295 in figure 5.11.6.