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These findings provide new insight into why people add tobacco to their joints, and are often addicted to tobacco after they quit cannabis." Links Research paper in Psychological Medicine Chandni Hindocha's academic profile Professor Val Curran's academic profile UCL Clinical Psychopharmacology Unit Media coverage Image Source: Philippa Willitts on Flickr Media contact Chris Lane Tel: +44 (0)20 7679 9222 Email: chris.lane [at] ucl.ac.uk