Elaine Ward, Michael King, Margaret Lloyd, Peter Bower, Bonnie Sibbald, Sharon Farrelly et al
Ward Elaine, King Michael, Lloyd Margaret, Bower Peter, Sibbald Bonnie, Farrelly Sharon et al.
Randomised controlled trial of non-directive counselling, cognitive-behaviour therapy, and usual general practitioner care for patients with depression. I: Clinical effectiveness
BMJ 2000; 321 :1383