1. A phase-specific psychological therapy for people with problematic cannabis use following a first episode of psychosis: a randomized controlled trial. Issue 13 (October 2014) Authors: Barrowclough, C.; Marshall, M.; Gregg, L.; Fitzsimmons, M.; Tomenson, B.; Warburton, J.; Lobban, F. Journal: Psychological medicine Issue: Volume 44:Issue 13(2014) Page Start: 2749 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗