Comorbidity of psychiatric disorders in adolescents.
D000293:Adolescent; D000367:Age Factors; D006801:Humans; D001523:Mental Disorders / Q000150:complications* / Q000175:diagnosis; D011569:Psychiatric Status Rating Scales; D012107:Research Design / Q000592:standards; D019966:Substance-Related Disorders / Q000150:complications* / Q000175:diagnosis