1. St George's, University of London; Population Health Research Institute; Cranmer Terrace London UK SW17 0RE
2. JSS College of Pharmacy, JSS University; Department of Pharmacy Practice; SS Nagar Mysore Karnataka India 570015
3. Karolinska University Hospital Solna; Department of Respiratory Disease and Allergy; Stockholm Sweden
4. Karolinska Institutet; Lung Research Unit, Department of Medicine; Stockholm Sweden
5. University of Perugia; Department of Internal Medicine; Perugia Italy