1 Laboratory of Intensive Care Medicine, Academic Department of Cellular and Molecular Medicine, Katholieke Universiteit Leuven, Leuven, Belgium.
2 Department of Intensive Care Medicine, University Hospitals Leuven, Leuven, Belgium.
3 Laboratory of Intensive Care Medicine, Academic Department of Cellular and Molecular Medicine, Katholieke Universiteit Leuven, Leuven, Belgium. geert.meyfroidt@uzleuven.be.
4 Department of Intensive Care Medicine, University Hospitals Leuven, Leuven, Belgium. geert.meyfroidt@uzleuven.be.