Sandionigi, Francesca, Francesca Cortellaro, Elisa Forni, and Daniele Coen. 2013. “Lung Ultrasound: A Valid Help in the Differential Diagnosis Between Pneumothorax and Pulmonary Blebs”. Emergency Care Journal 9 (1), e3. https://doi.org/10.4081/ecj.2013.e3.