1. Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
2. University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
3. Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
4. Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
5. Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, UK
6. Department of Pulmonology, Leiden University Medical Center, Leiden, the Netherlands
7. OMNI-Biomarker Development, Genentech Inc, South San Francisco, CA, USA
8. IDbyDNA Inc, Salt Lake City, UT, USA
9. University of Utah School of Medicine, Department of Pathology, Salt Lake City, UT, USA
10. European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
11. Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia