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.
Schematic overview of allelic heterogeneity in a chromosomal region implicated in disease across three populations. Variants are represented by dark and light blue boxes. Causal variants are population-specific (shown in light blue and indicated by arrows, N=5) and the strongest signal of association is found for a different variant in each population (the y axis describes the strength of association).
