1 Krefting Research Center, Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Göteborg, Sweden.
2 Department of Pharmacology and Toxicology, Maastricht University, Maastricht, the Netherlands.
3 Department of Respiratory Medicine, King's College Hospital, London, UK ; Department of Respiratory Medicine and Allergy, King's College, London, UK.
4 Department of Pneumology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.