The Effects of Social Presence on Adherence-Focused Guidance in Problematic Cannabis Users: Protocol for the CANreduce 2.0 Randomized Controlled Trial.
Manuel AmannSeverin HaugAndreas WengerChristian F BaumgartnerDavid Daniel EbertThomas BergerLars StarkMarc WalterMichael Patrick SchaubPublished in: JMIR research protocols (2018)
International Standard Randomized Controlled Trial Number Registry: ISRCTN11086185; http://www.isrctn.com/ISRCTN11086185 (Archived by WebCite at http://www.webcitation.org/6wspbuQ1M).