Bonfitto, I., G. Moniello, M. Pascucci, A. D’Urso, A. Trecca, M. Zanasi, and A. Bellomo. “Mood Disorders in Elderly Patients Hospitalized for Acute Exacerbation of COPD”. JOURNAL OF GERONTOLOGY AND GERIATRICS, Vol. 65, no. 1, Mar. 2017, pp. 13-17, https://www.jgerontology-geriatrics.com/article/view/154.