Sandionigi F et al. Lung ultrasound: a valid help in the differential diagnosis between pneumothorax and pulmonary blebs. Emerg Care J [Internet]. 2013 Jun. 17 [cited 2026 Sep. 6];9(1):e3. Available from: https://www.pagepressjournals.org/ecj/article/view/ecj.2013.e3