[1] Univ Alabama Birmingham, Dept Psychiat & Behav Neurobiol, Subst Abuse Ctr, Birmingham, AL 35209 USA
[2] Orlando VA Med Ctr, Orlando, FL USA
[3] Univ Alabama Birmingham, Dept Hlth Behav, Birmingham, AL 35209 USA
[4] Univ Alabama Birmingham, Div Prevent Med, Birmingham, AL 35209 USA