1 Academic Medical Center, University of Amsterdam, Dept of Respiratory Medicine and Dept of Intensive Care.
2 Research Center Borstel, Leibniz Center for Medicine and Biosciences, Member of the German Center for Lung research (DZL), Borstel, Germany.
3 Academic Clinical Fellow in Respiratory Medicine, Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK.