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.
ALS = amyotrophic lateral sclerosis; AFR = East and West African (blue); EAS = East Asian (purple); EUR = European (yellow); KHS = Khoisan (gray); SAB = Southern African Black (green); SAC = South African Coloured (red).
