1. Substance abuse: the nation’s number one health problem;Horgan,2001
2. Shoveling it up II: the impact of substance abuse on federal, state and local budgets;National Center on Addictions and Substance Abuse (CASA),2009
3. Adolescent substance use: America’s #1 public health problem;National Center on Addiction and Substance Abuse at Columbia University (CASA),2011
4. Diagnostic and statistical manual for mental disorders;American Psychiatric Association (APA),2013
5. The genetics of addictions: uncovering the genes;Goldman;Nat Rev Genet,2005