Sanguinetti, Claudio M. “The Lungs Need to Be Deflated: Effects of Glycopyrronium on Lung Hyperinflation in COPD Patients”. Multidisciplinary Respiratory Medicine 9, no. 1 (April 1, 2014). Accessed July 7, 2024. https://mrmjournal.org/index.php/mrm/article/view/416.