A Web-Based Self-Help Intervention With and Without Chat Counseling to Reduce Cannabis Use in Problematic Cannabis Users: Three-Arm Randomized Controlled Trial
A Web-Based Self-Help Intervention With and Without Chat Counseling to Reduce Cannabis Use in Problematic Cannabis Users: Three-Arm Randomized Controlled Trial
Michael P Schaub
1
, PhD ;
Andreas Wenger
1
, MSc ;
Oliver Berg
2
, MD ;
Thilo Beck
2
, MD ;
Lars Stark
2
, MA ;
Eveline Buehler
1
, MSc ;
Severin Haug
1
, PhD
1
Swiss Research Institute for Public Health and Addiction (ISGF), associated to the University of Zurich and World Health Organization Collaborating Center, Zurich, Switzerland
2
Arud Center for Addiction Medicine, Zurich, Switzerland
Corresponding Author:
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Michael P Schaub, PhD
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Swiss Research Institute for Public Health and Addiction (ISGF)
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associated to the University of Zurich and World Health Organization Collaborating Center
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Konradstrasse 32
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Zurich, 8031
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Switzerland
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Phone:
41 444481165
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Fax: 41 444481170
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Email: michael.schaub@isgf.uzh.ch