FIGURE 1.
Venn diagrams showing distinct and overlapping number of substance-associated genes. (A) Types of substance. (B) Categories of substance use behaviors. (C) Alcohol use and AUD. (D) Categories of tobacco initiation, use, and TUD.
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.