Prone Positioning Is a Safe and Effective Method in the Management of Acute Lung Injury after Cardiac Surgery - Saha, S.; Leistner, M.; Awad, G.; Asch, S.; Jebran, A. F.; Al Ahmad, A.; Baraki, H.; Kutschka, I.; Niehaus, A. (The Thoracic and Cardiovascular Surgeon, 2018)