Moore et al. Lancet (2007) 370: 319-28. Cannabis use and risk of psychotic or affective mental health outcomes: a systematic review.

Additional web data.

Wiles et al. Long-term effectiveness and cost-effectiveness of cognitive behavioural therapy as an adjunct to pharmacotherapy for treatment-resistant depression in primary care: follow-up of the CoBalT randomised controlled trial. The Lancet Psychiatry (in press). Protocol of the CoBalT Long-term follow-up study (PDF, 381kB)‌