1 Department of Thoracic Surgery, University Hospital Gasthuisberg, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven and KU Leuven University, Leuven, Belgium. Electronic address: dirk.vanraemdonck@uzleuven.be.
2 Department of Pneumology, University Hospitals Leuven, Leuven, Belgium; Department of Chronic Diseases, Metabolism and Ageing, KU Leuven University, Leuven, Belgium.
3 Department of Anesthesiology, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven University, Leuven, Belgium.