Publications by authors named "Lars Stark"

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Cannabis Use in Adults Who Screen Positive for Attention Deficit/Hyperactivity Disorder: CANreduce 2.0 Randomized Controlled Trial Subgroup Analysis.
Joachim Ahlers, Christian Baumgartner, Mareike Augsburger, Andreas Wenger, Doris Malischnig, Lars Stark

J Med Internet Res· April 2022

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CANreduce 2.0 Adherence-Focused Guidance for Internet Self-Help Among Cannabis Users: Three-Arm Randomized Controlled Trial.
Christian Baumgartner, Michael Patrick Schaub, Andreas Wenger, Doris Malischnig, Mareike Augsburger, Lars Stark

J Med Internet Res· April 2021

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Web-based self-help with and without chat counseling to reduce cocaine use in cocaine misusers: Results of a three-arm randomized controlled trial.
Michael P Schaub, Raquel Paz Castro, Andreas Wenger, Christian Baumgartner, Lars Stark

Internet Interv· September 2019

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The Effects of Social Presence on Adherence-Focused Guidance in Problematic Cannabis Users: Protocol for the CANreduce 2.0 Randomized Controlled Trial.
Manuel Amann, Severin Haug, Andreas Wenger, Christian Baumgartner, David D Ebert, Lars Stark

JMIR Res Protoc· January 2018

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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, Andreas Wenger, Oliver Berg, Thilo Beck, Lars Stark

J Med Internet Res· October 2015

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Erratum to: Evaluating the efficacy of a web-based self-help intervention with and without chat counseling in reducing the cocaine use of problematic cocaine users: the study protocol of a pragmatic three-arm randomized controlled trial.
Michael P Schaub, Larissa J Maier, Andreas Wenger, Lars Stark, Oliver Berg

BMC Psychiatry· September 2015

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Evaluating the efficacy of a web-based self-help intervention with and without chat counseling in reducing the cocaine use of problematic cocaine users: the study protocol of a pragmatic three-arm randomized controlled trial.
Michael P Schaub, Larissa J Maier, Andreas Wenger, Lars Stark, Oliver Berg

BMC Psychiatry· July 2015

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Can reduce--the effects of chat-counseling and web-based self-help, web-based self-help alone and a waiting list control program on cannabis use in problematic cannabis users: a randomized controlled trial.
Michael P Schaub, Severin Haug, Andreas Wenger, Oliver Berg, Robin Sullivan, Lars Stark

BMC Psychiatry· November 2013

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Web-based cognitive behavioral self-help intervention to reduce cocaine consumption in problematic cocaine users: randomized controlled trial.
Michael Schaub, Robin Sullivan, Severin Haug, Lars Stark

J Med Internet Res· November 2012

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Snow control - an RCT protocol for a web-based self-help therapy to reduce cocaine consumption in problematic cocaine users.
Michael Schaub, Robin Sullivan, Lars Stark

BMC Psychiatry· September 2011

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