Iaboli, Luca, Luca Baldini, Roberto Galassini, and Roberto Copetti. “Ultrasound Diagnosis of Lung Herniation: The Push-Out Sign”. Emergency Care Journal 14, no. 3 (December 12, 2018). Accessed April 19, 2019. https://www.pagepressjournals.org/index.php/ecj/article/view/7808.