title: The conundrum of co-occurring mental and substance use disorders: opportunities for research.
authors.affiliation: National Institute of Mental Health, 6001 Executive Boulevard, Room 8235, Bethesda, MD 20892, USA.
authors.forename: Junius J
authors.initials: JJ
authors.lastname: Gonzales
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Insel
mesh_terms: D015897:Comorbidity; D006296:Health Services; D006297:Health Services Accessibility; D006801:Humans; D001523:Mental Disorders / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy*; D011379:Prognosis; D012106:Research; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy*; D014481:United States / Q000453:epidemiology