Parola D, Castagnacci A, Salvati S. A case report of roflumilast in an elderly COPD patient: improving exercise capacity to improve quality of life. Monaldi Arch Chest Dis [Internet]. 2015 Aug. 19 [cited 2024 Nov. 25];79(3-4). Available from: https://www.monaldi-archives.org/macd/article/view/31