Guided Self-Help Cognitive Behavioural Therapy for Depression in Primary Care: A Randomised Controlled Trial Williams, Christopher ; Wilson, Philip ; Morrison, Jill ; McMahon, Alex ; Andrew, Walker ; Allan, Lesley ; McConnachie, Alex ; McNeill, Yvonne ; Tansey, Louise Abstract Publication: PLoS ONE Pub Date: January 2013 DOI: 10.1371/journal.pone.0052735 Bibcode: 2013PLoSO...852735W