Valli, G., A. Fedeli, R. Antonucci, P. Paoletti, and P. Palange. “Water and Sodium Imbalance in COPD Patients”. Monaldi Archives for Chest Disease 61, no. 2 (June 30, 2004). Accessed April 28, 2024. https://www.monaldi-archives.org/macd/article/view/708.