Reduction of postoperative pulmonary complications after lung surgery using a fast track clinical pathway - Muehling, Bernd M.; Halter, Gisela L.; Schelzig, Hubert; Meierhenrich, Rainer; Steffen, Peter; Sunder-Plassmann, Ludger; Orend, Karl-Heinz (European Journal of Cardio-Thoracic Surgery, 2008)