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.
Bivariate biometric models of liability for blackout and passing out susceptibility (that is, after taking into account frequency of intoxication) among women. A = additive genetic influences, C = shared environmental influences, and E = nonshared environmental influences.
