Reference:
Coventry PA, Lovell K, Dickens C, Bower P, Chew-Graham C, Cherrington A, Garrett C, Gibbons CJ, Baguley C, Roughley K, Adeyemi I, Keyworth C, Waheed W, Hann M, Davies L, Jeeva F, Roberts C, Knowles S, Gask L. Collaborative Interventions for Circulation and Depression (COINCIDE): study protocol for a cluster randomized controlled trial of collaborative care for depression in people with diabetes and/or coronary heart disease. Trials 2012;13: 139.