Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
NJ tree (A) of haplotype sequences and the corresponding haplotype frequencies (counts) (B) in five continental regions. Structural affiliations of haplotypes use the same color code as in figure 1. Asterisks (*) indicate haplotypes that occur in a single continental group.
