Coventry, P. A., Bower, P., Keyworth, C., Kenning, C., Knopp, J., Garrett, C., . . . Dickens, C. (2013). The Effect of Complex Interventions on Depression and Anxiety in Chronic Obstructive Pulmonary Disease: Systematic Review and Meta-Analysis. Public Library of Science.

Coventry, Peter A., Peter Bower, Christopher Keyworth, Cassandra Kenning, Jasmin Knopp, Charlotte Garrett, Daniel Hind, Alice Malpass, and Chris Dickens. The Effect of Complex Interventions On Depression and Anxiety in Chronic Obstructive Pulmonary Disease: Systematic Review and Meta-Analysis. Public Library of Science, 2013.

Coventry, Peter A., et al. The Effect of Complex Interventions On Depression and Anxiety in Chronic Obstructive Pulmonary Disease: Systematic Review and Meta-Analysis. Public Library of Science, 2013.