Baldi, Sergio, Francesco Coni, Giorgio Limerutti, Massimo Baccega, Enrico Ruffini, and Paolo Solidoro. “Delayed Functional Improvement After Near-Fatal Bleeding Complication Following Endobronchial Valve Therapy for Emphysema”. Monaldi Archives for Chest Disease 81, no. 1-2 (June 22, 2016). Accessed November 13, 2019. https://monaldi-archives.org/index.php/macd/article/view/748.