Tselebis, Athanasios, Dionisios Bratis, Argiro Pachi, Georgios Moussas, Ioannis Ilias, Maria Harikiopoulou, Elpida Theodorakopoulou, et al. “A Pulmonary Rehabilitation Program Reduces Levels of Anxiety and Depression in COPD Patients”. Multidisciplinary Respiratory Medicine 8, no. 9 (June 22, 2013). Accessed July 7, 2024. https://mrmjournal.org/index.php/mrm/article/view/539.