This paper describes the prevalence of comorbid mental disorders in the population and discusses what is known about causality and relapse. The relationship between dual diagnosis and homelessness and crime is also discussed. The paper also explores options for improving treatment among the dually diagnosed.
Hegner, Richard, "Dual Diagnoses: The Challenge of Serving People with Concurrent Mental Illness and Substance Abuse Problems" (1998). National Health Policy Forum. Paper 3.