1. Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
2. Institute of Occupational, Social and Environmental Medicine, Medical Faculty, Heinrich Heine University, Dusseldorf, Germany
3. Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
4. Department of Clinical Medicine, Faculty of Health and Medical Sciences, Bispebjerg-Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
5. Department of Environmental Science, Aarhus University, Roskilde, Denmark
6. Global Centre for Clean Air Research, Department of Civil and Environmental Engineering, University of Surrey, Guildford, UK
7. Danish Electronics Light & Acoustics, Hørsholm, Denmark
8. Diakonissestiftelsen and Parker Institute, Frederiksberg Hospital, Frederiksberg, Denmark
9. Centre for Epidemiological Research, Nykøbing F. Hospital, Nykøbing Falster, Denmark