1. American Psychiatric Association, 1987. The Diagnostic and Statistical Manual of Mental Disorders, 3rd ed. revised. Author, Washington, DC.
2. Comparative epidemiology of dependence on tobacco, alcohol, controlled substances, and inhalants: basic findings of the National Comorbidity Survey;Anthony;Exp. Clin. Pharmacol.,1994
3. Reducing the risk of AIDS through methadone maintenance treatment;Ball;J. Health Soc. Behav.,1988
4. Ball, J.C., Ross, A., 1991. The Effectiveness of Methadone Maintenance Treatment. Springer-Verlag, New York.
5. Psychosocial functioning and depression: Distinguishing among antecedents, concomitants, and consequences;Barnett;Psychol. Bull.,1988