Please select the eligibility criteria that correspond to the clinical trial below.
Title: Brief Intervention in Primary Care for Problem Drug Use and Abuse
Brief Summary: This study will examine the effectiveness of a brief intervention in a primary care setting to reduce drug use or abuse compared to enhanced care as usual.


Options:
A: Inclusion Criteria:

* The patient must fulfil research criteria for F2 in ICD-10 (schizophrenia and schizophrenia-like conditions) and diagnosis of F12 (mental illness or disturbances caused by cannabis)
* The patient must understand Danish language to the extent that assessment and treatment can be conducted without an interpreter.
* The patient must give informed consent to participate in the trial. In addition, the patient must consent to participate in the specialized treatment (CapOpus) and consent to continuation or initiation of treatment for the psychiatric condition.
* Patients in OPUS, Assertive Community Treatment, Community Mental Health Centres, psychiatric wards, and others who meet the criteria can be included in the trial. (OPUS is a treatment for young people with first-episode psychosis in Copenhagen - www.opus-kbh.dk)
* Cannabis abuse must be the dominant form of abuse. Other substance abuse can be present sporadically.
* Patients must be 18 to 35 years of age and have legal residence in or near the municipality of Copenhagen or Frederiksberg

Exclusion Criteria:

* Patients who meet the criteria of alcohol-dependence syndrome (F10.2), opioid dependence syndrome (F11.2) or cocaine dependence syndrome (F14.2)
* Patients who do not give informed consent
B: Inclusion Criteria:

* at least 18 years old
* receive medical care at one of the participating primary care clinics at Harborview Medical Center/University of Washington Medical Center
* will maintain care at the clinic for one year
* have a phone or easy access to phone, voicemail, or email
* used recreational drugs in the last 3 months
* used prescription medications not as prescribed in the last 3 months

Exclusion Criteria:

* participation in any formal substance abuse treatment programs in the last 30 days (excluding 12-step or self-help groups)
* terminal illness
C: Inclusion Criteria:

* Adolescents 15 to 25 years Repetead users : 1 to 10 per month; regular users : 11 to 29 per month; daily users : 1 and more per day.

The patient must have given his informed consent and signed the form of no objection

Exclusion Criteria:

* Adolescents with psychiatric illness considered by the attending physician in acute decompensated
* Intellectual Disability
* Hard of hearing
* No French language skills
* Patient already under treatment for the withdrawal of an addicition to cannabis or other substance
* Adolescents who participated in the preliminary qualitative study
D: Inclusion Criteria:

* motivation to change cannabis use
* age 16 or older
* current (12 mth) regular cannabis use (at least 2 days a week)
* informed consent to the study procedures and assessments

Exclusion Criteria:

* current alcohol or any illicit drug dependence syndrome according to DSM-IV other than due to cannabis
* lifetime history of any psychotic disorder
* current severe episode of Major depression
* current panic-agoraphobic disorder (severe)
* severe learning disability, brain damage or pervasive developmental disorder
* currently acute suicidality
* not fluent in german language
* any other current treatment for cannabis use disorders

Answer: B