da Costa, C C Effect of a Pulmonary Rehabilitation Program on the levels of anxiety and depression and on the quality of life of patients with chronic obstructive pulmonary disease. [electronic resource] - Revista portuguesa de pneumologia - 299-304 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 2172-6825 Standard No.: 10.1016/j.rppneu.2014.03.007 doi Subjects--Topical Terms: Anxiety--etiologyDepression--etiologyExercise TherapyFemaleHumansMaleMiddle AgedProspective StudiesPulmonary Disease, Chronic Obstructive--complicationsQuality of Life