2. Screening tool: Potential diagnoses will be evaluated by a counselor using any one or more of the following: Drug Use Survey, SCID Screen Patient Questionnaire, Mini International Neuropsychiatric Interview (M.I.N.I), Addiction Severity Index, and Brief Cocaine Cessation Motivation Assessment. The interviewer will supplement SCID with questions to assess for DSM-5 substance use disorders. The MAI may be consulted in this determination.