Poggiali, Erika, Andrea Vercelli, Teresa Iannicelli, Valentina Tinelli, Laura Celoni, and Andrea Magnacavallo. 2020. “COVID-19, Chronic Obstructive Pulmonary Disease and Pneumothorax: A Frightening Triad”. European Journal of Case Reports in Internal Medicine 7 (7). https://doi.org/10.12890/2020_001742.