Hinz, A., et al. “Anxiety and Depression in Sarcoidosis: The Influence Af Age, Gender, Affected Organs, Concomitant Diseases and Dyspnea”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 29, no. 2, Dec. 2012, pp. 139-46, https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2509.