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
,
CH
2
Arud Center for Addiction Medicine
,
Zurich
,
CH
Corresponding Author:
-
Michael P Schaub, PhD
-
Swiss Research Institute for Public Health and Addiction (ISGF)
-
associated to the University of Zurich and World Health Organization Collaborating Center
-
Konradstrasse 32
-
Zurich
-
CH
-
Phone:
41 444481165
-
Email: michael.schaub@isgf.uzh.ch