title: Evidence based medicine and evaluation of mental health services: methodological issues and future directions.
mesh_terms: D002648:Child; D019317:Evidence-Based Medicine / Q000379:methods* / Q000639:trends; D005194:Family Practice; D005544:Forecasting; D006801:Humans; D008605:Mental Health Services / Q000458:organization & administration / Q000639:trends; D008962:Models, Theoretical; D010372:Pediatrics; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome; D006113:United Kingdom; D014481:United States