Edmark , L., U. Auner, J. Hallén, L. Lassinantti-Olowsson, G. Hedenstierna, and M. Enlund. “A Ventilation Strategy During General Anaesthesia to Reduce Postoperative Atelectasis”. Upsala Journal of Medical Sciences, vol. 119, no. 3, Apr. 2014, pp. 242–250, doi:10.3109/03009734.2014.909546.