1. Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine,
2. Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, and
3. COPD Center, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, Gothenburg, Sweden;
4. Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden;
5. Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden;
6. Department of Anesthesiology and Intensive Care, and
7. Department of Infectious Diseases, Skåne University Hospital, Lund; Sweden;
8. Translational Infection Medicine, Lund University, Lund, Sweden; and
9. Karolinska Severe COPD Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden