Affiliation: | 1. COPSAC, The Copenhagen Prospective Studies on Asthma in Childhood, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark;2. The Danish Pediatric Asthma Center, Copenhagen University Hospital, Gentofte, Denmark;3. Division of Population Health Sciences and Education, St George's University of London, London, UK;4. Research Centre for Prevention and Health, Glostrup University Hospital, Glostrup, Denmark |