Anxiety and Depressed Mood Decline Following Smoking Abstinence in Adult Smokers with Attention Deficit Hyperactivity Disorder. Covey, L. S.; Hu, M. C.; Winhusen, T.; Lima, J.; Berlin, I.; Nunes, E.. J Subst Abuse Treat. 2015; 104-8: p.104-8. doi:10.1016/j.jsat.2015.07.004Article