Clinical effectiveness of collaborative care for depression in UK primary care (CADET): Cluster randomised controlled trial

David A. Richards, Jacqueline J. Hill, Linda Gask, Karina Lovell, Carolyn Chew-Graham, Peter Bower, John Cape, Stephen Pilling, Ricardo Araya, David Kessler, J. Martin Bland, Colin Green, Simon Gilbody, Glyn Lewis, Chris Manning, Adwoa Hughes-Morley, Michael Barkham